ok, my car(94 Saturn SL1) calls for a PF53 filter. This filter appears to contain a bypass valve inside of it. Is there some slightly larger filter that could be used in this car that also has the bypass valve? The PF52 looks like it should fit but I was reading in another thread that the 52 does not have a bypass valve. Is there some spec sheet somewhere that says the threads, diameters, and lengths of these filters and whether ot not they have bypass valves?
--Matt
--Matt