Normal Oil Pressure
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500, 472, 425, 368 Discussion, Normal Oil Pressure in Cadillac Engine Technical Discussion; What is the normal operating oil pressure for a 500? Mine seems a bit low. I runs at around 25-27lbs ...
  1. #1
    55 Chevy is offline Cadillac Owners Member
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    Normal Oil Pressure

    What is the normal operating oil pressure for a 500? Mine seems a bit low. I runs at around 25-27lbs at speed and 18lbs at idle.

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  3. #2
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
    Automobile(s): 1968 Cadillac Sedan deVille, 1994 Chevrolet G20
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    Re: Normal Oil Pressure

    For a 472 it calls for 35-40psi at speed, and 10psi at idle. It should be the same or similar for a 500.

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