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Old 11-20-2001, 05:58 AM
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mrfix
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Join Date: Mar 2001
Location: palmer, ma
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F-250 Cold Start Engine Knock

The only filters I've had luck with, as far as the antidrain back valve holding so that I don't get cold start up clatter are 2 out of 3 motorcraft, purolator, napa and wix. the quaker state filters are made by allied signal (fram), all of the low dollar filters have greater potential for leaking valves that allow the oil to drain back to the pan from the top end of the engine and the triton engines need to hold the oil on the top end when shut down in order to prevent excessive wear on a cold start.

2001 excursion limited, 4wd, V-10, 3.73 LS