New Owner With A 6.2 Gas Question

[GMCRB]

What should the oil pressure gauge be reading? Mine seems to stay around 40 no matter how high the rpm and at redlights ( idle ) drop down to around what I would guess is 20

[AlenWoods]

mine never goes below 40 and when I slam the gas it hits almost 80

[GMCRB]

Is that with a 6.2 motor? I am told they are different than a 6.0 or 5.3 for that matter.

[AlenWoods]

Well i have a 5.3, But still I dont think it should be that low at 20

[RJG183SA]

What should the oil pressure gauge be reading? Mine seems to stay around 40 no matter how high the rpm and at redlights ( idle ) drop down to around what I would guess is 20

 

First the oem electric gauge can't be relied on. Not known for accuracy.

 

Per my 99' Silverado FSM (LQ4, I know a slightly diff. animal).

 

Minm. psi - hot running 5w-30

 

6 @ 1000 rpm

18 @ 2000

26 @ 4000

 

seems your ok, how many miles?

 

New engine + new oil = higher psi.

[GMCRB]

It is a 2007 Sierra Denali with 49k on it. Just did a mobil one oil change a couple days ago. Just talked to a friend with same motor and he says his is about the same. I guess I am safe. Thank you

[BruceW]

My SD stays around 40 as well.

[RyanbabZ71]

my 2010 6.2 stays around 40 also as did my old 2000 5.3 and 2008 Tahoe with the 5.3