Patman
Staff member
I've heard this before, but is it true that the filters with antidrainback valves restrict the oil flow somewhat?
Out of the two longer filters I can use on my car, one has an antidrainback valve (PF1218) and the other (PF35) does not.
I don't really need it anyways, as my filter sits vertically anyways, and gravity makes sure the filter is full when the engine is shutdown.
Out of the two longer filters I can use on my car, one has an antidrainback valve (PF1218) and the other (PF35) does not.
I don't really need it anyways, as my filter sits vertically anyways, and gravity makes sure the filter is full when the engine is shutdown.