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FAQs for Oil Products
FAQs for Mobil 1 Extended Performance
Does Mobil 1 Extended Performance meet GF-5 specifications?
Why should I consider using Mobil 1 Extended Performance?
What is the difference between Mobil 1 Extended Performance and Mobil 1?
If Mobil 1 Extended Performance is recommended for 15,000-mile intervals, what’s the maximum limit to which it can be pushed? In other words, if a driver goes an extra 1,000 miles or so, is he going to damage his engine?
Do I need to flush my engine before switching to Mobil 1 Extended Performance?
Upon what driving conditions are these performance claims based? Normal or severe driving conditions?
If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
To achieve the best peace of mind related to engine protection, many vehicle owners change their motor oils every 3,000 to 4,000 miles. Is this practice rendered meaningless with the advent of the Mobil high-endurance oils?
FAQs for Mobil 1
What makes Mobil 1 superior to our conventional motor oil?
Is it okay to mix conventional motor oil with Mobil 1?
Will the use of Mobil 1 void my new-car warranty?
Is it true that new engines need break-in periods using conventional motor oil?
Should I follow the "severe" service oil change intervals mentioned in my owner's manual? Does Mobil 1 offer specific benefits under these conditions?
How often should I change the oil if I'm using Mobil 1?
Can I use an oil supplement and/or engine treatment with Mobil 1?
Can Mobil 1 be used in lawn mowers, snow blowers, and other small-cylinder engines?
I like to change the oil myself. How should I dispose of Mobil 1?
I thought Mobil 1, as a full synthetic, already provided the protection my high-mileage car needs. Do I really need to switch off Mobil 1 to your High Mileage product for my high-mileage car?
I'm currently using Mobil Super High Mileage with good results. Why should I change to Mobil 1 High Mileage 10W-30, which costs more?
What is Mobil 1 Advanced Fuel Economy?
Why should I consider using Mobil 1 Advanced Fuel Economy?
How much can I save with Mobil 1 Advanced Fuel Economy?
How can I determine the fuel savings that I might experience with my vehicle?
When you say that I can experience up to two percent fuel economy improvement, is that compared to other synthetic motor oils, or conventional motor oils?
What if I don't notice improved fuel economy after switching to Mobil 1 0W-20 Advanced Fuel Economy or Mobil 1 0W-30 Advanced Fuel Economy?
How is it possible for these products to improve fuel economy? What makes these formulations unique?
Where can I buy Mobil 1 Advanced Fuel Economy?
How much does Mobil 1 Advanced Fuel Economy cost?
What viscosities of Mobil 1 Advanced Fuel Economy are available, and can I use them in my vehicle?
Why do you recommend Mobil 1 0W-20 Advanced Fuel Economy as an alternative to 5W-20 when my car manufacturer recommends 5W-20?
If the manufacturer of my car recommends a 5W-20 motor oil, will I void my warranty if I use Mobil 1 0W-20 Advanced Fuel Economy instead?
Why do you recommend 0W-30 as an alternative to 10W-30 when my car manufacturer recommends 10W-30?
If the maker of my car recommends I use 10W-30 motor oil, will I void my warranty if I use 0W-30 instead?
FAQs for Motorcycle Oil
What was the reason for the formulation change to the Mobil 1 Racing 4T 10W-40?
So how is Mobil 1 for passenger cars different from Mobil 1 for motorcycles?
What are the overall advantages of Mobil 1 motorcycle oils?
Okay. Let's start with Mobil 1 Racing 4T 10W-40. What does it offer that Mobil 1 for cars does not?
What about Mobil 1 V-Twin 20W-50 motor oil? How is that different from Mobil 1 for passenger cars?
The owner's manual says I should change the oil every 5,000 miles or once a year. I change my oil every 2,500 miles or twice a year. So why do I need that kind of protection?
What happened to Mobil 1 Racing 2T?
Why did you change the name of Mobil 1 MX4T 10W-40 to Mobil 1 Racing 4T 10W-40? Is the product formulation different?
FAQs on Mobil 1 Racing Oils
What benefits does Mobil 1 Racing 0W-50 provide compared with using Mobil 1 15W-50?
How will Mobil 1 Racing 0W-50 hold up in high-heat applications like turbo-charging and supercharging? What is the highest temperature I can run this oil at?
What is the drain interval with Mobil 1 Racing 0W-50?
Do we need to run break-in oil before using Mobil 1 Racing 0W-50?
Can I use Mobil 1 Racing 0W-50 for street driving?
How does Mobil 1 Racing 0W-50 react to Ethanol/Methanol based fuels?
What are the zinc levels in this oil? And how do they compare to other racing oil competitors?
Does Mobil 1 Racing 0W-50 have the same film strength as Mobil 1 15W-50?
Is Mobil 1 Racing 0W-50 good for roller and flat tappet cams?
What are the direct benefits of Mobil 1 Racing 0W-50? More horsepower, lower temperatures?
I've been using Mobil 1 15W-50 in my race car.  How are these new oils better/different?
Are Mobil 1 Racing oils compatible with a wet clutch engine?
Are Mobil 1 Racing oils the exact formulation used by the Formula 1, NASCAR, and Le Mans race teams?
You say that Mobil 1 Racing oils are not for street use.  Why is that?  Does that mean I can't use these oils if my race car is also my daily driver?
Zero weight oils are thinner.  Will using a 0W oil cause excessive engine wear while racing or qualifying?
Where can I buy the Mobil 1 Racing oils? And in what size containers?
Our race team would like to buy Mobil 1 Racing oil in bulk.  Is that possible? How do we go about arranging it?
Mobil 1 has launched special racing oils before only to remove them from the market later on.  Why are you returning to this area, and can we rest assured these products will remain available?
Mobil Super
What’s the difference between Mobil 1 and Mobil Super Synthetic?
Why do you offer customers more than one synthetic choice?
I can’t find Mobil Clean 5000. Is it still available?
Has Mobil Clean High Mileage been discontinued? Is there a replacement for Mobil Clean High Mileage?
Has Mobil Clean 7500 been discontinued? Is there a replacement for Mobil Clean 7500?
Do Mobil Super products feature any oil drain guarantees?
Do all Mobil Super motor oils come with warranties?
FAQs for Mobil Clean 7500
Do these oils affect car warranties? If an owner’s manual recommends oil changes at 4,000 miles, will the car warranty still be in effect if I use Mobil Clean 7500?
Do the products meet GF-4 specifications? How did the new specification impact the development of the high-endurance product line?
What is the Mobil High Endurance Motor Oil line of motor oils and what does it consist of?
What type of testing has ExxonMobil conducted to validate these high-endurance claims?
What was the sample size of the test vehicles? Were these test vehicles representative of the U.S. car population? What types of vehicle engines were tested?
If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
Were competitive brands included in testing of the Mobil High Endurance Motor Oil line? If so, which brands and how did they perform compare to the Mobil products?
Were these tests and results conducted and validated by an independent third party?
Are these products appropriate for new vehicle engines?
Have Mobil Clean 5000 and 7500 and Mobil 1 Extended Performance been tested over the long term in cars on the road?
To achieve the best peace of mind related to engine protection, many vehicle owners change their engine oils every 3,000 to 4,000 miles. Is this practice rendered meaningless with the advent of the Mobil High Endurance Motor Oils?
Will the use of high-endurance oils have a positive impact on the environment?
If my warranty calls for a GF-3 rated oil, will using one of the new GF-4 rated oils invalidate my warranty?
FAQs for Mobil Clean High Mileage
I'm currently using Mobil Clean High Mileage with good results. Why should I change to Mobil 1 High Mileage 10W-30, which costs more?
Can I use Mobil Clean High Mileage in a vehicle where seal leaks are not an issue?
What is different about these products -- Mobil Clean 5000, Mobil Clean High Mileage, Mobil Clean 7500, and Mobil 1 Extended Performance -- that enables these oils to perform to their specific mileage parameters?
What happens if I use Mobil Clean High Mileage and I have engine problems?
Will the use of high-endurance oils have a positive effect on the environment?
If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
FAQs for Mobil Clean 5000
Is Mobil Clean 5000 a synthetic oil or a synthetic blend?
My owner's manual says to change oil every 10,000 miles; can I still use Mobil Clean 5000?
I have a high mileage vehicle; can I switch to Mobil Clean 5000?
Can I mix Mobil Clean 5000 with other oils? If I need to top up oil and Mobil Clean 5000 is not available can I top up with other oils?
Can I use Mobil Clean 5000 in my diesel engine?
Can I use Mobil Clean 5000 in my motorcycle or my boat engine?
What happens if I use Mobil Clean 5000 and have engine problems?
Do these motor oils affect car warranties? If an owner’s manual recommends oil changes at 4,000 miles, will the car warranty still be in effect if I use Mobil Clean 5000?
Where can I buy Mobil Clean 5000?
Can I purchase Mobil Clean 5000 at Mobil and Exxon service stations?
To achieve the best peace of mind related to engine protection, many vehicle owners change their engine oils every 3,000 to 4,000 miles. Is this practice rendered meaningless with the advent of the Mobil high-endurance oils?
What is different about these three products – Mobil Clean 5000, Mobil Clean 7500 and Mobil 1 Extended Performance – that enables these oils to perform to their specific mileage parameters?
Do the products meet GF-4 regulations? How did the new regulation impact the development of the high-endurance product line?
What type of testing has ExxonMobil conducted to validate these high-endurance claims?
What was the sample size of the test vehicles? Were these test vehicles representative of the U.S. car population? What types of vehicle engines were tested?
Were competitive brands included in testing of the Mobil High Endurance Motor Oil line? If so, which brands and how did they perform compare to the Mobil products?
Were these tests and results conducted and validated by an independent third party?
Have Mobil Clean 5000 and 7500 and Mobil 1 Extended Performance been tested over the long-term in cars on the road?
Are these products appropriate for new vehicle engines?
If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
Will the use of high-endurance oils have a positive impact on the environment?
Will the use of high-endurance oils have a positive impact on the environment?
FAQs for Mobil 1 Extended Performance
Does Mobil 1 Extended Performance meet GF-5 specifications?
All viscosities of Mobil 1 Extended Performance meet GF-5. Additionally, they meet or exceed the requirements of various ACEA (European) specifications.
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Why should I consider using Mobil 1 Extended Performance?
Mobil 1 Extended Performance is a synthetic motor oil designed to keep your engine running like new even during today’s longer service intervals. With Mobil 1 Extended Performance, you get proven protection up to 15,000 miles, guaranteed. It’s our most advanced full synthetic formulation and offers outstanding all-around protection that outperforms our conventional oils, synthetic blends, and regular full-synthetic motor oils.
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What is the difference between Mobil 1 Extended Performance and Mobil 1?
Mobil 1 Extended Performance has an even more robust formula that has been proven in extensive field tests to help protect critical engine parts for 15,000 miles between oil changes. Guaranteed. We’ve selected specific synthetic components to deliver this outstanding level of performance.
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If Mobil 1 Extended Performance is recommended for 15,000-mile intervals, what’s the maximum limit to which it can be pushed? In other words, if a driver goes an extra 1,000 miles or so, is he going to damage his engine?
Mobil 1 Extended Performance is recommended for up to 15,000-miles or one-year oil change intervals, whichever occurs first. However, if your vehicle manufacturer recommends an oil change interval beyond 15,000 miles and Mobil 1 Extended Performance meets the performance level specified, you can be assured that Mobil 1 Extended Performance will go the distance.
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Do I need to flush my engine before switching to Mobil 1 Extended Performance?
You do not need to flush your engine prior to changing to Mobil 1 Extended Performance.
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Upon what driving conditions are these performance claims based? Normal or severe driving conditions?
These claims relate to all typical consumer driving conditions, excluding those mentioned below. In other words, if you drive under normal conditions and use Mobil 1 Extended Performance in your vehicle, the oil is guaranteed to protect your engine for 15,000 miles. We also recommend that drivers consult their owner’s manual while their vehicle is under warranty, and follow the guidelines set forth there. Additionally, we recommend that if consumers drive routinely in severe conditions that they follow the oil change interval recommended in their owner's manual for severe conditions. We define "severe conditions" as:
  1. racing or commercial applications;
  2. frequent towing or hauling;
  3. extremely dusty or dirty conditions; or
  4. excessive idling.
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If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
Continue to change your oil filter when you change your engine oil. Special filters or more frequent oil filter changes are not required;, however, some low quality filters may not be capable of protecting your engine throughout an extended oil change interval.
 
Mobil 1 Extended Performance Oil Filters provide outstanding protection during longer oil change intervals - up to 15,000 miles of Guaranteed Protection when combined with fully synthetic motor oils. Mobil 1 Extended Performance Oil Filters are designed to remove more impurities (99.9 percent Multi-Pass Efficiency Test rating) and hold more contaminants (22.5 grams capacity) than conventional oil filters, which make them ideal candidates when oil drain intervals are extended. All new car warranties remain in effect when Mobil 1 Extended Performance Oil Filters are used. Follow your vehicle manufacturer's recommended oil change intervals.
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To achieve the best peace of mind related to engine protection, many vehicle owners change their motor oils every 3,000 to 4,000 miles. Is this practice rendered meaningless with the advent of the Mobil high-endurance oils?
Consumers should follow the maintenance practice that is best for them, and that meets their car manufacturers’ warranty.
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FAQs for Mobil 1
What makes Mobil 1 superior to our conventional motor oil?
First of all, the performance of Mobil 1 is more robust, especially in terms of low-temperature pumping and flow. High-temperature stability leading to the protection against deposits is also superior. These attributes translate into less engine wear, to help keep your engine running like new, and a long engine life. Conventional oils lack the performance of synthetic motor oils in the areas of low-temperature performance and high-temperature oxidation stability. Mineral base stocks used in conventional motor oils also contain significantly more impurities, such as aromatics and other undesirable contaminants that cannot be completely removed by conventional refining of crude oil.
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Is it okay to mix conventional motor oil with Mobil 1?
Yes. Mobil 1 is fully compatible with conventional motor oils, semi-synthetic motor oils, and other synthetic motor oils, should it be necessary to mix them. But the superior performance of Mobil 1 will be reduced by diluting it.
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Will the use of Mobil 1 void my new-car warranty?
With the exception of the Mazda rotary engine (Mazda does not recommend any synthetic oils), Mobil 1 will not void new-car warranties where an API certified oil is recommended. Mobil 1 meets or exceeds API (American Petroleum Institute) and ILSAC (International Lubricant Standardization and Approval Committee) motor oil service requirements of all new-car manufacturers, both import and domestic. If in doubt, always check your vehicle owner's manual or contact the vehicle manufacturer.
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Is it true that new engines need break-in periods using conventional motor oil?
That is a myth. In the past, engine break-in was necessary to remove metal flashing or any other abrasive material left inside the engine after machining, as well as to allow the valves and rings to "seat" properly. Today's engines are built with much tighter tolerances, much improved machining, and under much cleaner conditions compared to the engines of 10 or 20 years ago. Current engine manufacturing technology does not require a break-in period using petroleum-based motor oils.
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Should I follow the "severe" service oil change intervals mentioned in my owner's manual? Does Mobil 1 offer specific benefits under these conditions?
Many kinds of driving conditions qualify your vehicle for severe service oil change intervals, and Mobil 1 is ideal for this service. Severe service conditions can include, among other things:
  • Trips of less than 10 miles
  • Driving in cold weather
  • Idling for extended periods
  • Stop-and-go traffic
  • Pulling trailers/carrying heavy loads
  • Driving in dusty conditions
Under both normal and severe service conditions, Mobil 1 is engineered to provide performance reserves in the areas of sludge prevention, piston cleanliness, wear protection, and high-temperature durability.
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How often should I change the oil if I'm using Mobil 1?
Oil change intervals can be as short as 3,000 miles or as long as 15,000 miles on some new cars. We recommend that you follow the oil and filter change frequencies shown in your owner's manual, especially during the warranty period. With Mobil 1's high-performance reserves, you can have the confidence to go the full mileage or time frame recommended by the vehicle manufacturer. Mobil 1 is especially suitable for the latest vehicles with extended drain intervals or vehicles with oil monitoring systems that vary oil drain intervals.
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Can I use an oil supplement and/or engine treatment with Mobil 1?
ExxonMobil does not recommend it. According to the API (American Petroleum Institute) and Alliance of Automobile Manufacturers (AAM), "certified oils eliminate the need for supplemental engine oil additives." In fact, the use of any oil supplement is not recommended by car manufacturers and may void a warranty.
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Can Mobil 1 be used in lawn mowers, snow blowers, and other small-cylinder engines?
Yes, if the small engines are four-cycle engines that call for detergent-type motor oil. This type of engine has a separate crankcase for motor oil – it's not mixed with gasoline.
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I like to change the oil myself. How should I dispose of Mobil 1?
You should follow the same environmentally sound procedures that you do with conventional motor oil. The U.S. Environmental Protection Agency's (EPA) guidelines for disposal include:
  • Do not dump used motor oil in the trash.
  • Do not pour it on the ground or down the sewer or storm drain.
  • Place the used motor oil in a closed container.
  • Take it to a service station or a collection location that recycles used motor oil.
  • Do not burn the used motor oil in a space heater.
  • To make it easier to recycle, do not mix motor oil with other substances, such as gasoline or antifreeze.
Locate proper disposal locations in your area. Many Exxon and Mobil service stations will take used motor oil from do-it-yourselfers and will follow EPA-approved recycling practices. Please note that it is acceptable to mix used Mobil 1 with used conventional oil. In short, Mobil 1 should be disposed of in the same manner as used conventional motor oil.
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I thought Mobil 1, as a full synthetic, already provided the protection my high-mileage car needs. Do I really need to switch off Mobil 1 to your High Mileage product for my high-mileage car?
Mobil 1 High Mileage is designed for high-mileage vehicles that have been using conventional motor oils. It's true that most Mobil 1 vehicles with 75,000 plus miles should be in excellent condition and would not require some of the Mobil 1 High Mileage benefits. However, most cars on the road today do not use synthetic oils, so we developed this oil specifically for these cars that would benefit from switching off conventional oil.
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I'm currently using Mobil Super High Mileage with good results. Why should I change to Mobil 1 High Mileage 10W-30, which costs more?
If your vehicle has been maintained well, Mobil Super High Mileage represents an excellent choice. However, if you believe your engine may have sludge through less-than-adequate maintenance practices, Mobil 1 High Mileage may be the more suitable selection. Mobil 1 High Mileage helps reduce the sludge that other oils can leave behind which can result in extended engine life. For severe cases where sludge and other heavy deposits are present, shorter oil change intervals of 3,000 miles are recommended as clean-up proceeds.
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What is Mobil 1 Advanced Fuel Economy?
Mobil 1 Advanced Fuel Economy synthetic motor oils are fully synthetic motor oils engineered to deliver outstanding engine protection and provide improved fuel economy. The low-friction formulations increase engine efficiency and fuel economy versus those viscosity grades most commonly used. Mobil 1 Advanced Fuel Economy oils outperform conventional oils and meet or exceed the latest industry standards.
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Why should I consider using Mobil 1 Advanced Fuel Economy?
Mobil 1 Advanced Fuel Economy 0W-20 and 0W-30 motor oils flow faster than 5W-20 and 5W-30 motor oil, respectively, reaching your engine's vital parts faster during start-up. Not only does this help reduce wear on engine parts, but it also reduces the demands on your starter and battery. It's worth noting that GM owner's manuals recommend using synthetic 0W-30 or 5W-30 for temperatures below -20°F. Mobil 1 0W-20 and 0W-30 are certified as "Resource Conserving" by both the International Lubricant Standardization and Approval Committee (ILSAC) and the American Petroleum Institute (API).
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How much can I save with Mobil 1 Advanced Fuel Economy?
Mobil 1 Advanced Fuel Economy synthetic motor oils deliver up to two percent fuel economy improvement* and can save drivers more than $400 on gasoline over the life of their vehicles. That's a savings of about six cents per gallon of fuel. A typical passenger car with a 20-gallon gas tank can go up to nine more miles on a tank of gas when using Mobil 1 Advanced Fuel Economy. That equates to up to 250 more miles per year under typical conditions.

*Fuel economy improvement is based on a comparison versus those viscosity grades most commonly used and a potential two percent fuel economy improvement. Actual savings are dependent upon vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity. Savings estimates are based on a gasoline cost of $3 per gallon, average fuel economy of 22.5 miles per gallon, annual mileage of 12,500 and lifetime mileage of 150,000.
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How can I determine the fuel savings that I might experience with my vehicle?
We offer an online fuel savings calculator. All you need to do is plug in the current cost of fuel, your gas tank size, the average miles per gallon you experience with your vehicle and the number of miles you drive per year.  It's that simple. Many drivers can experience savings* on gasoline purchases over the life of their vehicles.

*Comparison based upon two percent potential fuel economy improvement obtained by switching from higher viscosity oils to a 0W-20 or 0W-30 grade. Actual savings are dependent upon vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity.
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When you say that I can experience up to two percent fuel economy improvement, is that compared to other synthetic motor oils, or conventional motor oils?
A potential two percent fuel economy improvement is obtained by switching from higher viscosity oils, conventional or synthetic, to a 0W-20 or 0W-30 grade. Actual savings are dependent upon vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity. The higher your current viscosity equates to a greater potential for savings.
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What if I don't notice improved fuel economy after switching to Mobil 1 0W-20 Advanced Fuel Economy or Mobil 1 0W-30 Advanced Fuel Economy?
Industry data confirms that lower viscosity motor oils, like the 0W-20 and 0W-30 viscosity grades offered as part of the Mobil 1 Advanced Fuel Economy line, contribute to improved fuel economy over the life of the vehicle. However, fuel economy improvement can be influenced by many factors including: your vehicle/engine type, outside temperature, driving conditions, adjusting tire pressure and your current engine oil viscosity.
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How is it possible for these products to improve fuel economy? What makes these formulations unique?
Mobil 1 Advanced Fuel Economy motor oils are low viscosity oils that offer low friction, fully synthetic formulations that increase engine efficiency and deliver outstanding fuel economy.
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Where can I buy Mobil 1 Advanced Fuel Economy?
Mobil 1 Advanced Fuel Economy is available in leading retailers and auto parts stores including Wal-Mart, AutoZone, Advance Auto Parts, Checker, Schucks and Kragen. Use our Product Locator to find a store near you.
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How much does Mobil 1 Advanced Fuel Economy cost?
While pricing is determined by retailers, we anticipate that Mobil 1 0W-20 Advanced Fuel Economy and Mobil 1 0W-30 Advanced Fuel Economy will be priced comparably with other Mobil 1 engine oil viscosities.
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What viscosities of Mobil 1 Advanced Fuel Economy are available, and can I use them in my vehicle?
Mobil 1 Advanced Fuel Economy is available in 0W-20 and 0W-30 formulations. ExxonMobil recommends Mobil 1 0W-20 for 5W-20 applications and Mobil 1 0W-30 for 5W-30 and 10W-30 applications.
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Why do you recommend Mobil 1 0W-20 Advanced Fuel Economy as an alternative to 5W-20 when my car manufacturer recommends 5W-20?
Mobil 1 0W-20 Advanced Fuel Economy meets or exceeds many new car warranty requirements where SAE 0W-20 or 5W-20 oil is recommended. Mobil 1 0W-20 Advanced Fuel Economy provides the high temperature protection of 5W-20 oils while offering improved fuel economy. As a result, many consumers can benefit from improved fuel economy while also obtaining outstanding engine protection for their vehicle. Mobil 1 0W-20 Advanced Fuel Economy should only be used in vehicles designed to operate on either 0W-20 or 5W-20 motor oil.
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If the manufacturer of my car recommends a 5W-20 motor oil, will I void my warranty if I use Mobil 1 0W-20 Advanced Fuel Economy instead?
If your car manufacturer recommends a SAE 5W-20 ILSAC oil (starburst), we recommend either Mobil 1 5W-20 or Mobil 1 0W-20 Advanced Fuel Economy. Mobil 1 0W-20 Advanced Fuel Economy will not void new-car warranties where an SAE 5W-20 oil is recommended. Mobil 1 0W-20 Advanced Fuel Economy can provide better fuel economy and better low temperature performance compared to higher viscosity oils.
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Why do you recommend 0W-30 as an alternative to 10W-30 when my car manufacturer recommends 10W-30?
Mobil 1 0W-30 Advanced Fuel Economy meets or exceeds many new car warranty requirements where SAE 0W-30, 5W-30 or 10W-30 oil is recommended. Mobil 1 Advanced Fuel Economy 0W-30 provides the high temperature protection of 5W-30 and 10W-30 oils while offering improved fuel economy. As a result, many consumers can benefit from improved fuel economy while also obtaining outstanding engine protection for their vehicles.
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If the maker of my car recommends I use 10W-30 motor oil, will I void my warranty if I use 0W-30 instead?
If your car maker recommends SAE 10W-30 ILSAC oil (starburst), we recommend either Mobil 1 10W-30, Mobil 1 5W-30, or Mobil 1 0W-30 Advanced Fuel Economy, which offers the high temperature protection of 10W-30 or 5W-30 oils while offering improved fuel economy. You will not void your warranty where an API certified oil is recommended.
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FAQs for Motorcycle Oil
What was the reason for the formulation change to the Mobil 1 Racing 4T 10W-40?
Mobil 1 Racing 4T 10W-40 is an internationally available product and, as such, represents advanced global technology. With the release of the recent JASO motorcycle standard (MA 2006), an opportunity was presented to again upgrade the Mobil 1 Racing 4T formulation such that it continues to meet and/or exceed the latest industry and OEM standards for motorcycles.
 
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So how is Mobil 1 for passenger cars different from Mobil 1 for motorcycles?
First, let's be clear about Mobil 1's overall benefits compared to those of conventional motor oils, whether for passenger cars or motorcycles:
  • Superior long-term engine protection.
  • Superior high-temperature stability.
  • Excellent low-temperature starting.
  • Outstanding engine performance.
  • Low volatility/low oil consumption
It's a little hard to generalize about the difference between Mobil 1 passenger-car motor oils and Mobil 1 motorcycle oils. That's because not all viscosities of Mobil 1 passenger-car oils have the same levels of zinc and phosphorus, and there are even greater differences among the three Mobil 1 motorcycle oils. In general, Mobil 1 motorcycle oils have:
  • Additive packages balanced differently for motorcycle engine and transmission operation. For passenger vehicles, fuel economy and emission system protection are higher priorities. These require low phosphorus systems and the use of friction modifiers. Motorcycle oils do not require friction modifiers for fuel economy and for better clutch friction less/no friction modifier is optimum. Motorcycle oils allow the use of higher levels of antiwear additives such as ZDDP (phosphorous).
(Updated December 2007)
 
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What are the overall advantages of Mobil 1 motorcycle oils?
In addition to the overall benefits listed above – specifically, high-temperature stability and low volatility/low oil consumption – Mobil 1 synthetic motorcycle oils also offer superior anti-corrosion performance compared to conventional motor oil, which is important in many parts of the country where bikes may sit in garages for several months of the year.
 
Compared to conventional oils, Mobil 1 motorcycle oils provide superior wear and high-temperature protection, and promote engine cleanliness and lower oil consumption.
 
Once you get past these general advantages, you have to deal with each specific motorcycle oil one at a time to understand the benefits.
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Okay. Let's start with Mobil 1 Racing 4T 10W-40. What does it offer that Mobil 1 for cars does not?
Mobil 1 Racing 4T 10W-40 is designed for sport bikes. Most of these bikes have multi-cylinder/multi-valve engines and use a common sump, which means the engine oil lubricates the engine, transmission and wet clutch. So unlike Mobil 1 for cars, Mobil 1 Racing 4T 10W-40 motor oil has no friction modifiers, which could lead to clutch slippage.
 
The motorcycle oil also has more phosphorus/zinc for enhanced wear protection at high engine speeds and high loads.
 
In addition, Mobil 1 Racing 4T 10W-40 has a high performance dispersant/detergent technology for better high-temperature performance and engine cleanliness. Mobil 1 Racing 4T 10W-40 is also offered in a different viscosity grade than Mobil 1 for passenger cars. (Updated December 2007)
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What about Mobil 1 V-Twin 20W-50 motor oil? How is that different from Mobil 1 for passenger cars?
Mobil 1 V-Twin 20W-50 fully synthetic motor oil is designed for air-cooled, large-displacement bikes. Because of their design, these engines can generate very high localized oil temperatures and high overall bulk-oil temperatures.
 
As you know, a typical air-cooled V-twin's rear cylinder gets a lot hotter than the front cylinder – it's a matter of airflow. When it's hot out and you're stuck in traffic, the oil temperature in your bike climbs rapidly. Above about 250°F, conventional motor oil is going to break down. Mobil 1 V-Twin 20W-50 fully synthetic motor oil is good to above 300°F.
 
Like Mobil 1 Racing 4T 10W-40, Mobil 1 V-Twin has high levels of phosphorus/zinc and the same high-temperature detergent technology for superior wear protection and engine cleanliness, even at elevated oil temperatures.
 
With Mobil 1 V-Twin oil, you can go the full length of the manufacturer's recommended oil change intervals with ease.
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The owner's manual says I should change the oil every 5,000 miles or once a year. I change my oil every 2,500 miles or twice a year. So why do I need that kind of protection?
For peace of mind and added protection. You pay a lot for a bike these days, so why risk running your engine in ordinary oil? Just like Mobil 1 synthetic oil for cars, Mobil 1 synthetic motorcycle oil helps keep your engine clean – free from varnish and deposits – and smooth running mile after mile, no matter what conditions you ride in.
 
Mobil 1 benefits engine life and performance. In fact, the lubrication capability of Mobil 1 motorcycle oil helps maintain peak horsepower and acceleration throughout the life of your engine. And with Mobil 1 you can go the full 5,000 miles between oil changes.
 
So, if you want to ride your bike long and hard and not be concerned about the oil, choose Mobil 1 motorcycle oil.
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What happened to Mobil 1 Racing 2T?
Mobil 1 Racing 2T was discontinued in the fall of 2007, and there is no replacement for it in the Mobil 1 motorcycle oil product lineup.
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Why did you change the name of Mobil 1 MX4T 10W-40 to Mobil 1 Racing 4T 10W-40? Is the product formulation different?
Mobil 1 MX4T 10W-40 was renamed because the product is known as Mobil 1 Racing 4T 10W-40 outside the US.  Be assured that no changes to the Mobil 1 MX4T 10W-40 formulation occurred during this name change. Same great product, new name.
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FAQs on Mobil 1 Racing Oils
What benefits does Mobil 1 Racing 0W-50 provide compared with using Mobil 1 15W-50?
Mobil 1 Racing oils employ fully synthetic, latest generation, wide viscosity grade racing oil technology designed to help reduce engine friction and protect the engine under high output conditions in high operating temperatures. Mobil 1 Racing 0W-50 motor oil offers boosted levels of anti-wear protection (nominal zinc level of 1850 ppm) for extra engine protection in highly loaded flat tappet engine designs.
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How will Mobil 1 Racing 0W-50 hold up in high-heat applications like turbo-charging and supercharging? What is the highest temperature I can run this oil at?
Mobil 1 Racing oils offer high-temperature protection at temperatures over 500°F (260°C) and are suitable for temperature protection where supercharging and turbo-charging is employed.
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What is the drain interval with Mobil 1 Racing 0W-50?
Oil drain intervals in racing conditions can vary widely.  Depending on specific racing applications and conditions, intervals of 500 miles or more are attainable.  When determining the correct interval at these extreme conditions, used oil quality should be monitored as each application and environment can be different.
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Do we need to run break-in oil before using Mobil 1 Racing 0W-50?
There is no need to run a special break-in oil if using Mobil 1. Mobil 1 has a robust additive system which helps provides protection during break-in as well as normal operation.
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Can I use Mobil 1 Racing 0W-50 for street driving?
Mobil 1 Racing oils are not recommended for everyday general street use where vehicles use catalytic exhaust converters.
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How does Mobil 1 Racing 0W-50 react to Ethanol/Methanol based fuels?
Mobil 1 oils are compatible with most fuels; however, excess fuel dilution may require more frequent changes and used oil analysis for quality monitoring.
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What are the zinc levels in this oil? And how do they compare to other racing oil competitors?
Mobil 1 Racing oils offer boosted levels of anti-wear protection (nominal zinc level of 1850 ppm) for extra engine protection in highly loaded flat tappet engine designs.
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Does Mobil 1 Racing 0W-50 have the same film strength as Mobil 1 15W-50?
Mobil 1 Racing oils offer the most up-to-date wide viscosity grade racing oil technology, designed to help reduce engine friction and protect the engine under high output conditions in high operating temperatures.
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Is Mobil 1 Racing 0W-50 good for roller and flat tappet cams?
Mobil 1 Racing oils offer boosted levels of anti-wear protection (nominal zinc level of 1850 ppm) for extra engine protection in highly loaded flat tappet engine designs.
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What are the direct benefits of Mobil 1 Racing 0W-50? More horsepower, lower temperatures?
Mobil 1 Racing oils employ fully synthetic, latest generation, wide viscosity grade racing oil technology  designed to help reduce engine friction and protect the engine under high output conditions in high operating temperatures.  Mobil 1 Racing 0W-50 offers boosted levels of anti-wear protection, nominal zinc level of 1850 ppm, for extra engine protection in highly loaded flat tappet engine designs.
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I've been using Mobil 1 15W-50 in my race car.  How are these new oils better/different?
Mobil 1 15W-50 is a higher viscosity oil that delivers a thick oil film for protection of high performance engines. While Mobil 1 15W-50 can be used and is recommended for both street and track use, the new Mobil 1 Racing oils are not recommended for general street use where vehicles use catalytic exhaust converters. Mobil 1 Racing 0W-30 and Mobil 1 Racing 0W-50 are lower viscosity oils designed to protect the engine under high output conditions in high operating temperatures. Additionally, Mobil 1 Racing Oils offer boosted levels of anti-wear protection (nominal zinc level of 1850 ppm) for extra engine protection in highly loaded flat tappet engine designs like those used in the NASCAR Sprint Cup series.
Updated July 2010
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Are Mobil 1 Racing oils compatible with a wet clutch engine?
These oils are not recommended for wet clutch applications due to their high level of molybdenum.
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Are Mobil 1 Racing oils the exact formulation used by the Formula 1, NASCAR, and Le Mans race teams?
Mobil 1 Racing oils are formulated with the same race-proven, fully synthetic technology used in racing applications around the world.  However, typically, Mobil 1 tailors its racing oil technology based on the specifications required by specific teams and/or race applications.
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You say that Mobil 1 Racing oils are not for street use.  Why is that?  Does that mean I can't use these oils if my race car is also my daily driver?
Automotive street use oils that meet the latest industry standards are required to have a lower level of Zinc and Phosphorus anti-wear chemistries than oils formulated years ago.  The latest automotive street use engine oils are designed to be compatible with emission control equipment.  Mobil 1 Racing oils are formulated with anti-wear (Zinc/Phosphorus) chemistries at twice the level of automotive street oils to provide enhanced protection of highly loaded valve train systems found in some race engines.  Based on the high level of anti-wear chemistries, Mobil 1 Racing oils are not recommended for street use.
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Zero weight oils are thinner.  Will using a 0W oil cause excessive engine wear while racing or qualifying?
Mobil 1 Racing oils employ fully synthetic, latest generation, wide viscosity grade racing oil technology, designed to help reduce engine friction and protect the engine under high output conditions in high operating temperatures. Both Mobil 1 Racing 0W-30 and Mobil 1 Racing 0W-50 motor oils offer boosted levels of anti-wear protection (nominal zinc level of 1850 ppm) for extra engine protection in highly loaded flat tappet engine designs.
Updated July 2010
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Where can I buy the Mobil 1 Racing oils? And in what size containers?
Mobil 1 Racing oils are available to buy online at the Mobil 1 Racing Store.  Package sizes include quarts (6 quarts per case) as well as 55-gallon drums and full pallets for race teams and small businesses.
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Our race team would like to buy Mobil 1 Racing oil in bulk.  Is that possible? How do we go about arranging it?
Mobil 1 Racing oils are available to order online in 55-gallon drums and full pallets at the Mobil 1 Racing Store, which may meet the volume/usage requirements of race teams.
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Mobil 1 has launched special racing oils before only to remove them from the market later on.  Why are you returning to this area, and can we rest assured these products will remain available?
Mobil 1 Racing oils are being launched primarily to address the needs of today's professional and grass roots racers for fully synthetic, latest generation, low viscosity, racing technology.  The online store provides access to the products which was not available several years ago.
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Mobil Super
What’s the difference between Mobil 1 and Mobil Super Synthetic?
Mobil 1 is part of our ultimate line of advanced full synthetics. It uses the latest in additive and base oil technologies that provide superior protection, and outperforms Mobil Super Synthetic. It meets both GM’s stringent dexos1™* and Europe’s ACEA performance standards. More car builders recommend Mobil 1 by name than any other motor oil brand in the world. More NASCAR® drivers use Mobil 1 than any other motor oil brands. Mobil 1 has provided exceptional performance throughout its nearly 40-year history and stands alone as The World’s Leading Synthetic Motor Oil Brand.
 
Our Product Comparison Chart shows how these products differ.
 
*The dexos1™ specification only applies to 5W-30 viscosity, which is required in GM vehicles.
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Why do you offer customers more than one synthetic choice?
A variety of synthetic product technologies exist, and we recognize that consumers have different needs. That’s why we now offer a wider range of synthetic product technologies.
 
Mobil 1, our line of advanced full synthetics, uses the latest in additive and base oil technologies for ultimate performance and protection. Mobil Super Synthetic is a full synthetic that uses synthetic-base oils and provides performance consistent with many synthetics in the market. Our Product Comparison Chart shows how these products differ.
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I can’t find Mobil Clean 5000. Is it still available?
Mobil Clean 5000 has been discontinued. We now offer Mobil Super, a premium conventional motor oil. Mobil Super offers a 5,000-mile protection guarantee, similar to Mobil Clean 5000. Mobil Super is designed to help extend engine life, combat sludge, and protect against engine wear. All Mobil motor oils come with a guarantee against oil-related engine failure. Some restrictions apply. See the Mobil Super Engine Guarantee* for details.
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Has Mobil Clean High Mileage been discontinued? Is there a replacement for Mobil Clean High Mileage?
Mobil Clean High Mileage has been discontinued. We now offer Mobil Super High Mileage, specially designed to help extend engine life for vehicles with more than 75,000 miles. Mobil Super High Mileage contains seal conditioners to help prevent engine leaks and reduce oil consumption.
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Has Mobil Clean 7500 been discontinued? Is there a replacement for Mobil Clean 7500?
Mobil Clean 7500 has been discontinued, and we no longer offer a semi-synthetic product. However, we have introduced a new full synthetic, Mobil Super Synthetic, which is designed to help extend engine life by providing outstanding engine protection in a variety of weather, temperatures, and driving conditions for vehicles of all ages. Mobil Super Synthetic outperforms our conventional and synthetic blend motor oils.
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Do Mobil Super products feature any oil drain guarantees?
Yes. Mobil Super and Mobil Super High Mileage are guaranteed for 5,000 miles. Mobil Super Synthetic is guaranteed for 7,500 miles. Some restrictions apply. For terms and conditions, see the Mobil Super Engine Guarantee.*
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Do all Mobil Super motor oils come with warranties?
Yes. All of our Mobil Super motor oil products come with the Mobil Super Engine Guarantee against oil-related engine failure. Some restrictions apply. For terms and conditions, see the Mobil Super Engine Guarantee.*
 
 
*Some restrictions apply. See the guarantee for terms and conditions or call 1-800-ASK-MOBIL (275-6624).
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FAQs for Mobil Clean 7500
Do these oils affect car warranties? If an owner’s manual recommends oil changes at 4,000 miles, will the car warranty still be in effect if I use Mobil Clean 7500?
Since the Mobil High Endurance Motor Oils exceed industry and car builder requirements, drivers can rest assured that their engine is well protected. As long as drivers follow the oil-change-interval guidelines set forth in their owner’s manuals, they won’t have to worry about voiding their warranties.
 
ExxonMobil stands behind the performance of its products. Per the guarantee listed on the back of the bottle, if a vehicle should suffer a lubricant-related problem while using Mobil Clean 7500, we will provide reimbursement for required repairs.
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Do the products meet GF-4 specifications? How did the new specification impact the development of the high-endurance product line?
The appropriate viscosities of Mobil Clean 5000, Mobil Clean High Mileage and Mobil Clean 7500 all meet the stringent standards of ILSAC GF-4.
 
Mobil 1 Extended Performance contains extra performance additives to deliver exceptional performance and protection. This fully synthetic technology is designed specifically for longer service intervals and surpasses the GF-4 engine protection and durability requirements. The appropriate viscosities of Mobil 1 Extended Performance are ILSAC GF-4 certified, and also meet API SM/CF and various ACEA (European) specifications. (Updated March 2006)
 
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What is the Mobil High Endurance Motor Oil line of motor oils and what does it consist of?
This line of high-endurance engine oils, designed to provide protection during today's longer oil change intervals, includes four products -- Mobil Clean 5000, Mobil Clean High Mileage , Mobil Clean 7500, and Mobil 1 Extended Performance.. Each product in this complete line of oils is guaranteed to provide protection from lubricant related engine failure for up to 5,000, 7,500 and 15,000 miles, respectively. Mobil Clean 7500 is a synthetic blend formulation with a boosted level of cleaning performance, 18 percent beyond the level of even our premium Mobil Clean 5000 conventional motor oil, to keep your engine cleaner longer.
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What type of testing has ExxonMobil conducted to validate these high-endurance claims?
ExxonMobil tested these oils in a variety of rigorous field, bench and lab tests such as field testing with the Lucky Cab Company in Las Vegas, Nevada.
 
Mobil Clean 5000 and 7500 technology has been tested extensively in various vehicles, under both normal and severe conditions, such as the Las Vegas desert and urban city streets, to prove that the products deliver outstanding performance and protection. Mobil 1 technology has a long history of extended service performance and is approved by several leading car builders for oil changing ranging typically from 10,000 to 18,000 miles. This includes Mercedes-Benz, BMW, Porsche, Audi, VW, Cadillac and Chevrolet. These products have been tested under the most severe service conditions and ambient temperatures, and some of the more challenging engine configurations.
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What was the sample size of the test vehicles? Were these test vehicles representative of the U.S. car population? What types of vehicle engines were tested?
Over 130 vehicles, both domestic and imported, including 4-cylinder, V-6 and V-8 engines, were tested across the U.S. in real-world driving conditions as well as very extreme conditions, from the congested streets of New York City to the heat of Las Vegas.
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If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
Continue to change your oil filter when you change your engine oil. Special filters or more frequent oil filter changes are not required.
 
Mobil 1 Extended Performance Oil Filters provide outstanding performance during longer oil change intervals. Mobil 1 Extended Performance Oil Filters are designed to offer excellent efficiency (remove more engine oil impurities) and high capacity (60 percent greater capacity than conventional oil filters) which make them ideal candidates for longer oil change intervals. (Updated March 2006)
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Were competitive brands included in testing of the Mobil High Endurance Motor Oil line? If so, which brands and how did they perform compare to the Mobil products?
We do not cite competitive brands that we test against. This line-up has set a new standard in oil change intervals. We can assure you that the products were tested against quality products that are representative of branded competition.
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Were these tests and results conducted and validated by an independent third party?
In many cases, our additive suppliers actually conducted the testing. This is very common in our industry and deemed an acceptable practice. Of course, this is in addition to the already extreme testing completed by ExxonMobil engineers. (Updated March 2006)
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Are these products appropriate for new vehicle engines?
The appropriate viscosities of Mobil Clean 5000, Mobil Clean High Mileage and Mobil Clean 7500 all meet the stringent standards of ILSAC GF-4, the latest industry requirements for new vehicles.
 
Advanced full synthetic Mobil 1 Extended Performance is designed specifically for longer service intervals and surpasses the GF-4 engine protection and durability requirements. The appropriate viscosities of Mobil 1 Extended Performance are also ILSAC GF-4 certified, and meet API SM/CF and various ACEA (European) specifications. (Updated March 2006)
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Have Mobil Clean 5000 and 7500 and Mobil 1 Extended Performance been tested over the long term in cars on the road?
The Mobil Clean technology was field tested extensively during the last several years to substantiate the performance of the products. We have significant long-term testing of Mobil 1 in extended service applications, both on the road and in chassis dynamometer testing. Field research testing for Mobil-branded motor oils is an ever-green project and field testing is an ongoing project that continues year after year. (Updated March 2006)
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To achieve the best peace of mind related to engine protection, many vehicle owners change their engine oils every 3,000 to 4,000 miles. Is this practice rendered meaningless with the advent of the Mobil High Endurance Motor Oils?
Consumers should follow the maintenance practice that is best for them, and that meets their car manufacturers’ warranty. They can have peace of mind knowing the guaranteed performance and protection intervals of the Mobil line of high-endurance motor oils. Mobil Clean 5000, Mobil Clean High Mileage, Mobil Clean 7500 and Mobil 1 Extended Performance protect critical engine parts from lubricant-related failure for 5,000/7,500/15,000 miles -- guaranteed. (Updated March 2006)
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Will the use of high-endurance oils have a positive impact on the environment?
Mobil Clean 5000, Mobil Clean 7500 and Mobil 1 Extended Performance are marketed based on what consumers are currently doing -- going longer between oil changes. However, if less used oil is discarded through the introduction of these products, this would represent a positive impact on the environment.
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If my warranty calls for a GF-3 rated oil, will using one of the new GF-4 rated oils invalidate my warranty?
No, GF-4 oils are backward compatible to ILSAC GF-3 and GF-2. This means that you can use new GF-4 oils in any application calling for a ILSAC GF quality oil.
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FAQs for Mobil Clean High Mileage
I'm currently using Mobil Clean High Mileage with good results. Why should I change to Mobil 1 High Mileage 10W-30, which costs more?
If your vehicle has been maintained well, Mobil Clean High Mileage represents an excellent choice. However, if you believe your engine may have sludge through less-than-adequate maintenance practices, Mobil 1 High Mileage may be the more suitable selection. Mobil 1 High Mileage helps reduce the sludge that other oils can leave behind which can result in extended engine life.  For severe cases where sludge and other heavy deposits are present, shorter oil change intervals of 3,000 miles are recommended as cleanup proceeds.
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Can I use Mobil Clean High Mileage in a vehicle where seal leaks are not an issue?
Yes, Mobil Clean High Mileage can still be used. The extra seal conditioner may help to prevent a leak later on and will not cause problems in your vehicle.
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What is different about these products -- Mobil Clean 5000, Mobil Clean High Mileage, Mobil Clean 7500, and Mobil 1 Extended Performance -- that enables these oils to perform to their specific mileage parameters?
Mobil Clean 5000 has a boosted level of cleaning performance to help prevent the formation of sludge and harmful deposits and provides outstanding wear protection of critical engine parts during today's longer service intervals.
 
Mobil Clean High Mileage is designed especially for higher mileage (75,000 miles-plus) vehicles. The product conditions seals to help prevent leaks and provides extra cleaning performance to help prevent the formation of sludge and harmful deposits.
 
Mobil Clean 7500 is a synthetic blend formulation that includes 18 percent more cleaning agents than our conventional oil to help prevent the formation of sludge and deposits during today's longer service intervals.
 
Mobil 1 Extended Performance is our premier, fully synthetic formulation with the Advanced SuperSyn System, which provides exceptional oil life. The product's extra performance additives help deliver outstanding engine protection during longer service intervals.
 
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What happens if I use Mobil Clean High Mileage and I have engine problems?
ExxonMobil stands behind the performance of its products. Should you have a lubricant-related problem, call 1-800-ASK-Mobil. We will investigate your claim and help determine what happened and why. If your vehicle failed due to an oil-related issue, we will reimburse you for the required repairs.
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Will the use of high-endurance oils have a positive effect on the environment?
Mobil Clean 5000, Mobil Clean High Mileage, Mobil Clean 7500 and Mobil 1 Extended Performance are marketed based on what consumers are currently doing -- going longer between oil changes. However, if less used oil is discarded through the introduction of these products, this would represent a positive impact on the environment.
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If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
Continue to change your oil filter when you change your engine oil. Special filters or more frequent oil filter changes are not required.
 
Mobil 1 Extended Performance Oil Filters provide outstanding performance during longer oil change intervals. Mobil 1 Extended Performance Oil Filters are designed to offer excellent efficiency (remove more engine oil impurities) and high capacity (60 percent greater capacity than conventional oil filters), which make them ideal candidates for longer oil change intervals. (Updated March 2006)
 
 
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FAQs for Mobil Clean 5000
Is Mobil Clean 5000 a synthetic oil or a synthetic blend?
Mobil Clean 5000 is not a synthetic or synthetic blend. While it does offer high performance, the base stock composition is non-synthetic.
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My owner's manual says to change oil every 10,000 miles; can I still use Mobil Clean 5000?
Yes. For applications where the oil life indicator light or owner's manual recommended change interval exceeds 5,000 miles and a conventional oil is recommended, Mobil Clean 5000 will provide protection for the full oil change interval.
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I have a high mileage vehicle; can I switch to Mobil Clean 5000?
Yes you can. However, another outstanding choice is Mobil Clean High Mileage. Mobil Clean High Mileage provides the same boosted cleaning performance as Mobil Clean 5000 to keep engines clean longer, and it includes seal conditioner to help prevent leaks in higher mileage vehicles.
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Can I mix Mobil Clean 5000 with other oils? If I need to top up oil and Mobil Clean 5000 is not available can I top up with other oils?
You can mix Mobil Clean 5000 with other oils and use other oils to top up. Be aware that mixing other oils with Mobil Clean 5000 could void the Mobil Clean 5000 Motor Oil Limited 5000 Mile or 6-Month Warranty.
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Can I use Mobil Clean 5000 in my diesel engine?
If an API CF or CD oil is recommended for your diesel engine, Mobil Clean 5000 is an excellent choice. If your vehicle calls for an API CJ-4 or CI-4 oil, Mobil 1 Turbo Diesel Truck 5W-40 is an excellent choice. (Updated April 2008)
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Can I use Mobil Clean 5000 in my motorcycle or my boat engine?
For four-cycle motorcycles, we recommend Mobil 1 Racing 4T 10W-40 and Mobil 1 V-Twin 20W-50.  These products are designed specifically for four-cycle motorcycles, including wet clutch applications. If your boat engine calls for an API SM, SL, SJ, SH or SG rated oil, you can use Mobil Clean 5000. However, we recommend that you follow the recommended oil change interval in your owner's manual.
 
Obviously, if you have a two-cycle motorcycle or outboard engine, you must use a two-cycle oil. (Updated June 2006)
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What happens if I use Mobil Clean 5000 and have engine problems?
ExxonMobil stands behind the performance of its products. Should you have a lubricant-related problem, call 1-800-ASK-Mobil. We will investigate your claim and help determine what happened and why. If your vehicle failed due to an oil-related issue, we will reimburse you for the required repairs.
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Do these motor oils affect car warranties? If an owner’s manual recommends oil changes at 4,000 miles, will the car warranty still be in effect if I use Mobil Clean 5000?
Since the Mobil line of oils exceeds industry and car builder requirements, drivers can rest assured that their engine is well protected. As long as drivers follow the oil-change-interval guidelines set forth in their owner’s manuals, they won’t have to worry about voiding their warranties.
 
ExxonMobil stands behind the performance of its products. Per the guarantee listed on the back of the bottle, if a vehicle should suffer a lubricant-related problem while using Mobil Clean 5000, we will provide reimbursement for required repairs.
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Where can I buy Mobil Clean 5000?
Mobil Clean 5000 is available at leading auto parts chains and mass merchandisers.
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Can I purchase Mobil Clean 5000 at Mobil and Exxon service stations?
While most of our Mobil and Exxon service stations are operated by independent dealers who are free to make their own decisions regarding the products they carry, we anticipate that they will carry Mobil Clean 5000.
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To achieve the best peace of mind related to engine protection, many vehicle owners change their engine oils every 3,000 to 4,000 miles. Is this practice rendered meaningless with the advent of the Mobil high-endurance oils?
Consumers should follow the maintenance practice that is best for them, and that meets their car manufacturers’ warranty. They can have peace of mind knowing the guaranteed performance and protection intervals of the Mobil line of high-endurance motor oils. Mobil Clean 5000, Mobil High Mileage, Mobil Clean 7500 and Mobil 1 Extended Performance protect critical engine parts from lubricant-related failure for 5,000/7,500/15,000 miles -- guaranteed. (Updated March 2006)
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What is different about these three products – Mobil Clean 5000, Mobil Clean 7500 and Mobil 1 Extended Performance – that enables these oils to perform to their specific mileage parameters?
Mobil Clean 5000 has an extra level of cleaning performance, 16 percent more cleaning additive than our conventional oil, Mobil Clean (available only in installed facilities), to help keep your engine cleaner longer.
 
Mobil Clean 7500 is a synthetic blend formulation with a boosted level of cleaning performance, 27 percent more cleaning additives than Mobil Clean 5000, to keep your engine cleaner longer.
 
Mobil 1 Extended Performance is our premier product, offering the ultimate in performance and protection due to a unique, fully synthetic formulation which helps to promote long oil life and protect critical engine parts from lubricant-related failures. Mobil 1 Extended Performance also features the Advanced SuperSyn System, which contains 50 percent more SuperSyn than Mobil 1. (Updated March 2006)
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Do the products meet GF-4 regulations? How did the new regulation impact the development of the high-endurance product line?
Mobil Clean 7500 and the appropriate viscosities of Mobil Clean 5000, Mobil Clean High Mileage and Mobil 1 Extended Performance all meet the stringent standards of ILSAC GF-4. (Updated March 2006)
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What type of testing has ExxonMobil conducted to validate these high-endurance claims?
ExxonMobil tested these oils in a variety of rigorous field, bench and lab tests such as field testing with the Lucky Cab Company in Las Vegas, Nevada.
 
Mobil Clean 5000 and 7500 technology has been tested extensively in various vehicles, under both normal and severe conditions, such as the Las Vegas desert and urban city streets, to prove that the products deliver outstanding performance and protection.
 
Mobil 1 technology has a long history of extended service performance and is approved by several leading car builders for oil changing ranging typically from 10,000 to 18,000 miles. This includes Mercedes-Benz, BMW, Porsche, Audi, VW, Cadillac and Chevrolet. These products have been tested under the most severe conditions, severe ambient temperature and some of the more challenging engine configurations.
 
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What was the sample size of the test vehicles? Were these test vehicles representative of the U.S. car population? What types of vehicle engines were tested?
Over 130 vehicles, both domestic and imported, including 4-cylinder, V-6 and V-8 engines, were tested across the U.S. in real-world driving conditions as well as very extreme conditions, from the congested streets of New York City to the heat of Las Vegas.
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Were competitive brands included in testing of the Mobil High Endurance Motor Oil line? If so, which brands and how did they perform compare to the Mobil products?
We do not cite competitive brands that we test against. This line-up has set a new standard in oil change intervals. We can assure you that the products were tested against quality products that are representative of branded competition. (Updated March 2006)
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Were these tests and results conducted and validated by an independent third party?
In many cases, our additive suppliers actually conducted the testing. This is very common in our industry and deemed an acceptable practice.
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Have Mobil Clean 5000 and 7500 and Mobil 1 Extended Performance been tested over the long-term in cars on the road?
The Mobil Clean technology was field tested extensively during the last several years to substantiate the performance of the products. Mobil 1 Extended Performance has a very long history of demonstrated extended service field testing.
 
We have significant long-term testing of Mobil 1 in extended service applications, both on the road and in chassis dynamometer testing.
 
 
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Are these products appropriate for new vehicle engines?
Yes, Mobil Clean 7500 and the appropriate viscosities of Mobil Clean 5000, Mobil Clean High Mileage and Mobil 1 Extended Performance all meet the stringent standards of ILSAC GF-4, which is the latest industry and car builder requirements for new vehicles. (Updated March 2006)
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If I go longer between oil change intervals, do I need to change my oil filter more frequently? Or do I need a special filter?
Continue to change your oil filter when you change your engine oil. Special filters or more frequent oil filter changes are not required.
 
Mobil 1 Extended Performance Oil Filters provide outstanding performance during longer oil change intervals. Mobil 1 Extended Performance Oil Filters are designed to offer excellent efficiency (remove more engine oil impurities) and high capacity (60 percent greater capacity than conventional oil filters) which make them ideal candidates for longer oil change intervals. (Updated March 2006)
 
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Will the use of high-endurance oils have a positive impact on the environment?
Mobil Clean 5000, 7500 and Mobil 1 Extended Performance are marketed based on what consumers are currently doing -- going longer between oil changes.  However, if less used oil is discarded through the introduction of these products, this would represent a positive impact on the environment.
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Will the use of high-endurance oils have a positive impact on the environment?
Mobil Clean 5000, 7500 and Mobil 1 Extended Performance are marketed based on what consumers are currently doing -- going longer between oil changes.  However, if less used oil is discarded through the introduction of these products, this would represent a positive impact on the environment.
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