Posted 2/4/2009 13:20 (#596197 - in reply to #596187) Subject: Re: oil pressure on Duramax
SC Kansas
I feel like I could peg mine when its coud. At 1500rpm while cold mine hits 90psi.. If its about 15-20psi at idle 30-40psi at cruising speed at operating tempture it should be normal. I try not to take it over 1500 to 1700prm til the temp gauge comes up.
oil pressure on Duramax
