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No direct data on this but good friend had a pin hole in the metal on one.
He has been chasing an oil leak for weeks on his truck.
Problem is it was tightened serveral times so when he went to take it off it crush down so I doubt there is any way to diagnose it and I dont have the build date of the filter but by the paint it looks brand new.
As far as the "bypass valve" in the oil filter...what automotive oil filter doesnt have this?
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