I have a 2005 Envoy SLE 4WD. Just a couple of weeks ago, I noticed my oil pressure moving from 40 psi at idle to nearly 60 psi when accelerating. GMC dealer says this is normal. Anyone else have a similar problem or a possible solution?
Good point, we've had some members on this site who've had trouble with their vehicles after taking them to the quick lube shops, and having the wrong weight put in. Have you recently had your oil changed?Maybe you put a different weight oil in that produces different readings?