Fuel Dilution and Oil Filters

[Speak2Mountain]

Does fuel in the oil have any detrimental effect(s) on the filter over time?

 

[SilverFusion2010]

I would say it depends on the filter construction. I kinda doubt it though

 

[SilverSnake]

Not if you change the oil and filter as specified in your the cars owner's manual and use a high quality oil filter (i.e., OEM)

 

[Dyusik]

It would thin oil, reducing probability of bypass events and filter warping due to thick oil rushing through.

 

[Olas]

Filter manufacturers know fuel is presenting oil, and aware that some oils are petroleum based. The ones who care develop filtration media accordingly.

 

[Ethan1]

I've ran plain old Motorcraft FL-1A filters on old carbed cars with major fuel dilution, meaning that the filter media was immersed in maybe 10% gasoline for 2 to 3 years at a time. The filter was perfect.