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Oil pressure 6.2

ltzsilverado
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TXGREEK Senior Enthusiast

TXGREEK

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If his oil level was too low, he’d be getting fluctuations; the gauge would be moving up and down while at a steady RPM. Check engine light would come on and the fuel pump would be shut down to kill the motor.
O.P., save yourself a trip to the dealer to be told that it’s fine. You’re good for sure.


He’s better off going to get it checked out this way at least he’ll be good to go either way. Besides, you going to fix for free if anything does happen? Don’t think so


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Pearl2017
Pearl2017

Not sure why some choose to keep a razor thin margin for error in these not inexpensive machines. The 0w-20 spec was made to save .1 mpg for federal mandate and not to tow a trailer up a hill at 70 in

Grumpy Bear
Grumpy Bear

I wanted to make sure of my facts before I weighed in so we went for a 150 mile jaunt. Not a particularly hot day, Mid 70's. Dead cold high idle pressure 28 psi on a scan gauge. Fully warmed up with o

Jon A
Jon A

Please do next time you tow as that is contributing to your issue.  Judging by the coolant and trans temp and description of use, I would guess your engine oil exceeded 260 degrees.  Do that with thin

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TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
If his oil level was too low, he’d be getting fluctuations; the gauge would be moving up and down while at a steady RPM. Check engine light would come on and the fuel pump would be shut down to kill the motor.
O.P., save yourself a trip to the dealer to be told that it’s fine. You’re good for sure.


He’s better off going to get it checked out this way at least he’ll be good to go either way. Besides, you going to fix for free if anything does happen? Don’t think so


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ltzsilverado Enthusiast

ltzsilverado

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5 hours ago, TXGREEK said:

 


He’s better off going to get it checked out this way at least he’ll be good to go either way. Besides, you going to fix for free if anything does happen? Don’t think so


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I plan on making a appointment for the dealer soon and have them look at it. Just for peace of mine, but I don't think they will do any thing. Plus my factory trailer brake controller don't work when I tested it on my father's trailer

ltzsilverado Enthusiast

ltzsilverado

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10 hours ago, ltzsilverado said:

I plan on making a appointment for the dealer soon and have them look at it. Just for peace of mine, but I don't think they will do any thing. Plus my factory trailer brake controller don't work when I tested it on my father's trailer

I just looked the information up on alldata and min. Oil pressure is 22psig at 1000 rpm , 30 psig at 2000

'17 Sierra Enthusiast

'17 Sierra

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Posted
2 hours ago, ltzsilverado said:

I just looked the information up on alldata and min. Oil pressure is 22psig at 1000 rpm , 30 psig at 2000

?

'17 Sierra Enthusiast

'17 Sierra

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Also if you feel you would like another opinion, hook up a mechanical oil pressure gauge and I bet you’ll find it’s actually higher than what yours reads.

TXGREEK Senior Enthusiast

TXGREEK

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In all seriousness, your vehicle is still under warranty, go get it checked! [emoji125]


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badge171 Enthusiast

badge171

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Tailor the truck to your needs, dial the engine to your needs. If your desert driving,towing uphill 0w-20 ,Just ain't gonna give you the protection your looking for. Millage Really Towing? 5w-30 for a starting point. . Any of these trucks showing pics of there Oil Pressure Gauges thinking they are accurate gauges , crazy ,not much better than old school dummy light.  

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FL335i Enthusiast

FL335i

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Posted (edited)

My 5.3L has always shown 30psi or 1 needle under 30psi at hot idle in FL. Even when it's 99 outside.  Could be the oil if you had a shop or dealer do it.  I would be curious if you did your own oil change with PP/Valvoline/M1 0w-20 what the pressures would be. 

Edited by FL335i
ltzsilverado Enthusiast

ltzsilverado

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4 hours ago, FL335i said:

My 5.3L has always shown 30psi or 1 needle under 30psi at hot idle in FL. Even when it's 99 outside.  Could be the oil if you had a shop or dealer do it.  I would be curious if you did your own oil change with PP/Valvoline/M1 0w-20 what the pressures would be. 

My truck has not seen a dealership since I bought it. Did first oil change with mobile 1 020 at 700 miles and been every 5000 miles since

FL335i Enthusiast

FL335i

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So much for that theory.  I'd take it in and if they say "it's normal".  Then ask for a print out of the GM Service Manual that provides the oil pressure range spec.

TJay74 Senior Enthusiast

TJay74

Posted
Posted
On 8/15/2018 at 1:59 PM, Coolboatguy said:

I have not logged temp, but I'm sure its probably scalding.   Normal low for me is 12psi.   This is just the lowest I've seen and probably is from the high temps and thus the only reason I took a picture.   According to dealers 6psi is the minimum so apparently they don't care about anything above that.  The corvette boards recite roughly the same.  It should be noted that mine is a rebuilt motor as well and I'm more interested in whats normal in case I want to take it to the shop I had it built at.  Some say cam bearings could cause this as well as an oil pump.  

 

I looked at other sites and they confirmed the use what ever oil weight that gets you 10 psi/1000 at 212 degrees reasoning. 

 

 

 

I dont believe the trucks support the oil temp feature. I use HPT as well, my truck never shows oil temps but my 2017 Camaro SS does. Same engine in both vehicles.

TJay74 Senior Enthusiast

TJay74

Posted
Posted

Part of the issue is the 0w20 oil, that is used for trying to improve the corp fuel mileage numbers and that reason only. Anything the manufactures can do to tweak out some more MPG. Junk that stuff and either run a 0w30 or 5w30 if you are going to tow.

Second, the oil pumps in these engines are dual stage. So they have a low and high mode in them as well, again to help with EPA numbers.

Jon A Senior Enthusiast

Jon A

Posted
Posted
2 hours ago, TJay74 said:

I dont believe the trucks support the oil temp feature. I use HPT as well, my truck never shows oil temps but my 2017 Camaro SS does. Same engine in both vehicles.

They do, you just need to set up the software to scan for it.  I read engine oil temp with both HPT and Torque on Android.

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