Oil pressure will change with RPM and oil temperature. 22psi at idle is totally normal.

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Oil pressure will change with RPM and oil temperature. 22psi at idle is totally normal.

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Mine rests at 22 psi as well. I can't remember what the engineer interview TFL said, but don't these engines have a variable oil pump or something? I don't think it was electrically driven like the water pump, but it can choose how much PSI it wants essentially?

 

Very interesting. Thanks for the info. Just seemed odd as every other vehicle I have had the gauge tends to sit at or near the mid point. Glad to know all is good!

 

Most gauges like that are dummy gauges, you can tell if the gauge reaches that point and never moves. Most vehicles like that just have an oil pressure switch and you're not seeing actual oil pressure, all you're seeing is that there is "some" oil pressure and the gauge basically has 2 positions; Normal and none.

If you watch the oil pressure on the DIC you'll see it changes constantly with RPM and as the oil temp goes from cold to warm. The oil pressure in my 2.8 is around 15psi at idle, 42psi cruising on the freeway, and 60+ when the oil is cold or when the RPMs are high.

Dummy gauges tend to train people to misunderstand what really happens so when they get a vehicle that has gauges providing actual readings they think something is wrong. Dummy gauges are nothing more than fancy idiot lights, I wish manufacturers would stop using them. Should either be a gauge providing actual values or a light that comes on when there's a problem.

 

It would be interesting (to me anyway) to know how the piston oil squirters are activated on the 2.7T. With the 3.6 V6 they open at anything over about 45 psi so with warm oil when the second stage oil pressure kicks in at about 4500 RPM and oil pressure jumps to 70-90 psi that is when they open. I like the idea of a continuously variable pump over the 3.6 V6 (T and N/A) which uses an electronically controlled 2 stage.

 

Just picked up a ‘24 1500 Silverado. Oil pressure even at high speeds about 25. Drive it right back to the dealership, mechanic said “it’s normal”.

 

My 2022 Silverado LTD 2.7L idles at 22psi. 30psi at highway. Totally normal.

 

I know that water pump is electric and is variable. I had no idea that the oil pump was variable as well.

I question the factory gauges. While on vacation in Maine, we were just traveling down the highway at the posted limit and I saw that the engine oil temperature was at the 3/4 mark yet the engine coolant temperature was below the halfway mark. I changed and checked the oil before the trip and during the trip and level was fine. Not sure how there can be that much difference between engine coolant temp and engine oil temperature in the same engine ?

 

When I first start my truck and it’s cool outside (41f) the oil pressure gauge goes all the way up to max and turns red. Has anyone else had this issue?

 

Yes mine does that. I don’t think it’s an issue. It’s just the gauge coming to life and measuring the oil pressure from 0 through start up. It settles right away.

 

I have a 2021 2.5L Colorado, normal for it to go up to about 87/88 before it has warmed up? After it warms up it sits at about 35-40 when idling, fluctuates with RPM but that’s normal correct?

 

Totally normal.