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hud 91gt · 08-07-2019, 09:41 AM

No thermostat would actually help your worry. You’d have a constant flow of hot oil being circulated, versus oil being trapped by the thermostat (when closed) and cooling down to ambient temperature. In airplanes in Manitoba AMEs would put covers on the oil coolers when it got really cold, but this is -40’s and cruising at 200 knots. If it’s an aftermarket cooler and the car is meant to run without one, I’d just cover it up during those cold times. Fan moving backwards would work but seems awfully complicated.

08-07-2019, 09:41 AM	#649
hud 91gt RS.net, helping ugly ppl have sex since 2001 Join Date: Feb 2002 Location: Vancouver Posts: 8,419 Thanked 4,040 Times in 1,562 Posts Failed 35 Times in 27 Posts	No thermostat would actually help your worry. You’d have a constant flow of hot oil being circulated, versus oil being trapped by the thermostat (when closed) and cooling down to ambient temperature. In airplanes in Manitoba AMEs would put covers on the oil coolers when it got really cold, but this is -40’s and cruising at 200 knots. If it’s an aftermarket cooler and the car is meant to run without one, I’d just cover it up during those cold times. Fan moving backwards would work but seems awfully complicated. __________________ Crush - 1971 Datsun 240z - Build Thread The Daily - Rav4 V6 - “Goldilocks”