Oil filter seal

[Hanno Spoelstra]

Originally Posted by rob love

I have pretty much always found them included with the filter. I could see needing a new one if you were using a very old NOS filter, but personally I would use fresh stock.

Here in Europe, I find that the MANN PF925X filter is a good fit, and it comes with an 11 cm diameter rubber ring which fits in the oil filter housing. Equivalent filters from other manufacturers often have smaller sealing rings. Having a proper flat seal is better, though.