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Ask Mobil Archive -
Contamination
DateQuestionAnswer
12/01/2008
Consequences of Failure to Maintain Motor Oil
What happens when the motor oil is not maintained?
Over time, oil and the additives used in the oil break down and thermally degrade. And because the circulating oil picks up debris and other contaminants of combustion, it must be eventually changed t...
10/22/2007
Should Synthetic Oil Darkening in Color be Changed?
I own a 5.4 liter Ford engine with 90,000 miles. I purchased it with 87,000 miles and at that time chose to use Mobil 1. I've run the Mobil 1 in this engine for 3,000 miles and my oil appears to be "b...
We would never use color alone as an indication to gauge whether or not you should change your oil. Without oil analysis you can reach the wrong conclusion about oil quality and in many cases darker e...
11/26/2006
Containment of Dirt in Engine Oil During Extended Oil Drains
I have been changing my own oil for many years now. I always change it between 3000-3500 miles and I see how dirty my oil is first hand. You now advertise an oil that lasts for 15,000 miles. While thi...
Mobil 1 Extended Performance is fully synthetic motor oil that will help extend your engine life, reduce oil breakdown and minimize engine wear while keeping your engine clean through special cleaning...
08/19/2006
Are Chances of Contamination Increased with Longer Change Intervals
I have always used Mobil 1 synthetic oil, but I would like to know the difference between it and Mobil 1 Extended Performance. Also, I have read that contamination (such as moisture build up from shor...
The build up of moisture and incompletely burned fuel is typical of short trip driving and can lead to the formation of acids in the engine oil. In fact, continuous stop and go driving can be relative...
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