In Reply to: Re: G.M. 5.7 V8 oil pressure issues posted by Bruce(OR) on March 12, 2019 at 20:09:19:
I have a '92 5.7 C1500.
I bought it with 28k miles.
I has never had high oil pressure.
It has less than 30 at idle, and maybe 45 on the highway.
I have always run 10/40 Pennzoil oil, not synthetic, with a good quality filter.
It now has 147k miles, and is still the same oil pressure wise.
How many miles on yours, and how long have you had it?