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| | | Forums66 Topics128,092 Posts1,056,040 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Feb 2012 Posts: 23 New Guy | | New Guy Joined: Feb 2012 Posts: 23 | What is the normal operating oil pressure for a gmc 248 six cylinder? Thanks | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy smithleej, I would say somewhere between 20 and 50 p.s.i. at cruising speed, for a used engine, hope that helps.
Last edited by 3B; 04/13/2012 3:53 AM.
| | | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | | | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | Motor oil.  I think my well worn 248 idles around 35-40 and is around 50-60 driving. Jeff | | | | | Joined: Feb 2012 Posts: 23 New Guy | | New Guy Joined: Feb 2012 Posts: 23 | | | |
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