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FAQs for Mobil 1™ Extended Performance
Does Mobil 1™ Extended Performance synthetic oil 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 synthetic oil?
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?
Does Mobil 1™ Extended Performance synthetic oil 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 oil designed to keep your engine running like new even during today’s longer service intervals. With Mobil 1 Extended Performance synthetic motor oil, 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 synthetic oil 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 synthetic oil?
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 synthetic oil 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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