it is either missing in action or stuck open. not good for your engine to run it that way. the engine is designed to run with the oil at the optimum temp. cold oil is not good for it. also hot is not good either.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.