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  1. JasonS

    Proper Oil Pressure Range Question...

    Not this engineer's rule of thumb. Oil pressure requirements depend on more than rpm. If something is abnormal, don't wait to find out why.
  2. JasonS

    Proper Oil Pressure Range Question...

    The military manual doesn't offer much for details of proper oil pressure. The civilian manual for the OA331 lists the following: 5 to 15psi at idle, 35psi minimum at 2krpm, and 40 to 60psi at governed speed. Unless your engine is REALLY worn, it should start out with more oil pressure when...
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