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Ask Mobil Archive -
Oil Filters
DateQuestionAnswer
05/08/2012
Does Too Fine of Filtration Filter Out Oil Additives?
Can too fine a filtration, as in 3 to 5 micron, cause damage by filtering out some important additives in Mobil 1™ or conventional oils?
Filtration at 3- 5 microns is approaching the critical limit for certain engine oil additive components. For example, anti-foamant is added to the oil to prevent foaming; this molecule is physically s...
03/31/2012
Do Older Unused Oil Filters Lose Function?
I found a Mobil 1™ M1-104 oil filter in my trunk that I must have forgotten about. It may be 2 or 3 years old and has been through upper Midwest winters and summers. The rubber ring still seems pliabl...
It is fine to use a filter that is 2-3 years old, as long as the filter has not been exposed to water. Check the gasket for tiny cracks that are signs of dry rot. If the filter is dry and does not hav...
02/22/2012
Does the M1-204 Oil Filter Gasket Need Lubricating?
From looking at some other FAQs it is not clear to me whether the M1-204 Oil Filter gasket needs to be lubricated or not prior to installation. Should I lubricate it or not?
The Mobil 1™ Extended Performance M1-204 Oil Filter is pre-lubricated so lubricating the gasket is not required. However, putting a light film of oil on it is recommended to make installation easier a...
08/04/2010
Do Oil Filters Wear Out Faster than the Motor Oil
I have been driving for 50 years. In the 50's and 60's I changed oil at 3,500-mile intervals. As oils got better, I extended the interval to 5,000 miles. I generally keep my cars for 100,000 plus mile...
Our recommendation is to always follow the oil change frequencies shown in your owner's manual; however, Mobil 1 is especially suitable for the latest vehicles with extended oil drain intervals. If yo...
05/24/2010
Explain Symbols on the Side of Mobil 1 Extended Performance Oil Filters
On the side of the filter, there is a series of five symbols. What do they mean? 
The symbols on the side of the can or shell are the installation instructions.1.) Clean the gasket surface. 2.) Put a few drops of fresh oil on the new gasket. 3.) Hand tighten until the gasket surfac...
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