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What Causes Moisture on the Oil Fill Cap?
Moisture under the oil filler cap; there are drops but it’s not creamy looking. This is from a 5.7 Dodge Ram 4x4 and my neighbor has the same engine in his truck with the same problem. Another friend ...
Without more detailed knowledge of your situation and vehicle operation, the most likely cause for this condensation is air humidity, which then condenses under the fill cap.  Water may be making its ...
Can Mobil 1 0W-40 be Used in a Dodge Neon Year-round?
I have a 2005 Dodge Neon SRT-4. As I understand it, my car calls for a 5W or 10W-30 oil. After the Neon was replaced by the Caliber, the SRT version came out with a factory fill of Mobil 1 0W-40. I've...
Using Mobil 1 0W-40 is a good choice for year-round service in Las Vegas where there's a wide range of ambient temperatures. With the addition of the turbo, the higher viscosity of the 0W-40 should pr...
Is Mobil 1 Less Likely to Produce Sludge than Valvoline Synthetic?
I used Mobil 1 in my '03 Intrepid 2.7L engine from 7.5k to 97K miles before I gave it to my son. I did this for known sludging problems in the Chrysler 2.7L. I told him he could only have it if he use...
The best evidence for him is your own experience and it sounds like you have had outstanding performance from Mobil 1™. So you might want to show him all the OEMs (original equipment manufacturers) th...
Best Oil for Achieving High Mileage in Turbo Diesel Engines
We have a '98 Suburban with a t/d 6.5 with 255,000 miles. It has been run with Mobil Delvac 1 since about 75,000 miles (prior was Mobil 1). Engine is great; changed every 5k approximately. We also hav...
Mobil Delvac 1 ESP 5W-40 is a fully synthetic supreme performance heavy duty diesel engine oil that helps extend engine life while providing long drain capability and potential fuel economy for modern...
Is Mobil 1 ESP Formula M 5W-40 an Imported Oil?
In a 2008 Sprinter 3500 6 cylinder diesel, you recommend an oil available only at a Mercedes-Benz dealer. The engine is an import, but the oil is made in the USA but labeled as an imported oil.  How c...
We recommend Mobil 1 ESP Formula M 5W-40 which is an oil made in the USA with domestic and imported materials. 
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