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slowmover · 03-10-2011, 08:10 PM

There are engine oil heat exchangers mounted at the oil filter inlet to hasten engine oil warm-up and to keep temps from spiking while underway (working hard or hard conditions). This is from a police-spec Ford, and here is a diagram from a Chevrolet.

MOPAR used to sell one that was simply a block filter adaptor with two lines for coolant ingress/egress, and ran to radiator and from the water pump. Used on early V6 minivans. Looked like this.

03-10-2011, 08:10 PM	#21 (permalink)
slowmover Banned Join Date: Oct 2009 Location: Fort Worth, Texas Posts: 2,442 2004 CTD - '04 DODGE RAM 2500 SLT Team Cummins 90 day: 19.36 mpg (US) Thanks: 1,422 Thanked 737 Times in 557 Posts	There are engine oil heat exchangers mounted at the oil filter inlet to hasten engine oil warm-up and to keep temps from spiking while underway (working hard or hard conditions). This is from a police-spec Ford, and here is a diagram from a Chevrolet. MOPAR used to sell one that was simply a block filter adaptor with two lines for coolant ingress/egress, and ran to radiator and from the water pump. Used on early V6 minivans. Looked like this.