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Which oil filter has the best anti-drainback valve?


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As you know the Renix 4.0s have the oil filter mounted vertically & the predictable result is that the oil drains out of the filter when you shut the truck down. My '90 doesn't particularly like that and rattles, etc for about 5 sec when you restart. I'd like to find a filter with a good anti drainback valve to combat that as I can't imagine it's good for the motor. Suggestions? My 2nd option would be to put a later HO adapter on and mount the filter 90 degrees.

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Purolator and Bosch so far. I looked at the Carquest (Wix) filters and the expensive ones have a spring inside. I asked the guy what pressure it takes to overcome the spring (I only have 10psi at hot idle) and he didn't know.

Also the Carquest filter was $7.25 so I thought I'd get a 2nd opinion and more info first.

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