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hey mike'76, think it's possible they may have put a high volum oil pump in before sticking it in the truck? the reason i say that is I had a melling hv pump in my motor and it read about the same way. when cold it read ~60 then held ~30 to 35 when warm at idle, but out on the highway it would go back up with the rpms. does the pressure increase with the rpms on yours?
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