I believe my oil pressure gauge is working properly, but I just want to make sure since I my 82 300TD is my first diesel. When I start the car with the engine cold the gauge pegs out at 3 when idling. While still idling the pressure drops slowly to about 1.5 as the engine gets warmed up. Then when I accelerate and maintain speed the guage pegs out, then when I take my foot off the pedal it drops down as I come to idle speed again. The previous owner told me this was normal and he hasn't given me any reason to disbelieve him, but I just wanted to make sure since if it is not normal it could cause some serious problems.

Thanks for the help
Andrew

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The operation of the gauge is perfectly normal. They only peg the gauge when cold or when operating at above 1000-1500 rpm (depending on engine) when warm.

sounds absolutely normal.

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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.

Good, Thats what I like to hear.
Thanks

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