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Old 07-16-2008, 12:44 PM   #9 (permalink)
Shawn D.
Harebrained Idea Skeptic
 
Join Date: Jun 2008
Location: Alpharetta, GA
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The White Car - '84 Mercedes-Benz 300td
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Quote:
Originally Posted by Daox View Post
I never heard of a thermostat setup on just a basic engine. I've heard of them with oil coolers.
He's not talking about a thermostat. Cold oil is more viscous, thus causing a higher pressure differential across the filter media. To ensure sufficient flow and prevent media damage/blowout, a spring-loaded bypass is provided so the oil can bypass the filter and continue on to the galleys.
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