LT1 Normal Oil Pressure Range

mikeyg36 · 08-13-2016, 11:35 AM

I'm probably being incredibly paranoid about the pick up tube recall but I feel like the idle oil PSI has dropped since when I first got the car. While idling on a warm engine it's sitting around 28-29 PSI. Is this around what everyone else is at?

Ventmaster · 08-13-2016, 03:12 PM

I've noticed my oil press. has also always been much lower than my LLT V6.

Never greater than 40 even at start-up (hot weather since I got the car).
I'm sure it's dropping down in the 28-30 range when warmed up and at idle.

mikeyg36 · 08-13-2016, 03:17 PM

Quote:

Originally Posted by Ventmaster

I've noticed my oil press. has also always been much lower than my LLT V6.

Never greater than 40 even at start-up (hot weather since I got the car).
I'm sure it's dropping down in the 28-30 range when warmed up and at idle.

I know it'll definitely be lower than the V6s with the DOHCs and all the other valvetrain parts. I'm pretty sure those engines used to hit the peg on a cold start.

Tmcbigblue · 08-13-2016, 04:31 PM

I'm in my ss now at warm idle and just a hair under the 30 mark. So the same as your ss.

DadsCam · 11-18-2016, 09:11 PM

Here's the thread I was looking for. Just watched mine for the first time SS, 28-29 fully warmed up at idle and lower rpms. Gets up to a little under 40 under rpms. Was wondering if this was normal myself. Seems like it is.

UrMaster · 04-02-2019, 03:31 PM

Mine sits about 30 maybe lil less when hot idling and 35 cruising. Rarely goes upto or over 40 unless I go WOT at which point only at very high rpm does it hit 50 or so. Is that normal? This is my second 2016 and I could have swore my first one had a little higher pressure then this.

SSDan · 04-02-2019, 03:42 PM

Quote:

Originally Posted by UrMaster

Mine sits about 30 maybe lil less when hot idling and 35 cruising. Rarely goes upto or over 40 unless I go WOT at which point only at very high rpm does it hit 50 or so. Is that normal? This is my second 2016 and I could have swore my first one had a little higher pressure then this.

Mine has been about the same for 3 years and 21K miles . I dont worry about it.

EGOKLR · 04-02-2019, 03:48 PM

Quote:

Originally Posted by UrMaster

Mine sits about 30 maybe lil less when hot idling and 35 cruising. Rarely goes upto or over 40 unless I go WOT at which point only at very high rpm does it hit 50 or so. Is that normal? This is my second 2016 and I could have swore my first one had a little higher pressure then this.

factory oil pressure specs are 22psi at 1000rpm, 30psi at 2,000 rpm, and 33psi at 3,000 rpm. So yes, that will be normal.

The relief valve (should) stop oil pressure from exceeding between 55 and 75 psi.

KingLT1 · 04-03-2019, 07:49 AM

As long as oil pressure increases with rpm then it's fine. Idle pressure does not need to be very high.

TRich2SS · 04-03-2019, 11:03 AM

Quote:

Originally Posted by KingLT1

As long as oil pressure increases with rpm then it's fine. Idle pressure does not need to be very high.

^^

MackSteelPrivateEye · 04-03-2019, 12:35 PM

Not like old cars....OP now fluctuates depending on the engines requirements. No longer just what the pump pumps out. All controlled by sensors now.

Shawnqa800720 · 08-14-2021, 10:33 AM

Should I expect a difference in pressure when I run 5-40 oil per the track-prep guide for track days? When I run the standard 5-30 I run slightly below 40 PSI. When I run the 5-40 I am closer to 45. Both these PSI readings are "most of the time" readings, meaning when I look, that's where they are.

KingLT1 · 08-14-2021, 10:55 AM

Yes thicker oil will increase pressure.

s346k · 08-14-2021, 02:47 PM

at operating temp mine shows 30 psi idling, and it gradually increases to around 55 psi with rpm up to 6100 or so. at 6100 it jumps to 70+ psi. oil weight doesn't seem to make a difference. i've had 5-30, 0-40 & 5-40 in it. all the same except the heavier oils make a little more pressure when cold below 5k rpm.

08-13-2016, 11:35 AM	#1
mikeyg36 Drives: 2015 Z/28 #533 Join Date: Jul 2012 Location: NY Posts: 6,732	LT1 Normal Oil Pressure Range I'm probably being incredibly paranoid about the pick up tube recall but I feel like the idle oil PSI has dropped since when I first got the car. While idling on a warm engine it's sitting around 28-29 PSI. Is this around what everyone else is at?

04-03-2019, 07:49 AM	#9
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,561	As long as oil pressure increases with rpm then it's fine. Idle pressure does not need to be very high. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

08-14-2021, 10:33 AM	#12
Shawnqa800720 Drives: 2018 1SS Join Date: Dec 2018 Location: MA Posts: 306	Should I expect a difference in pressure when I run 5-40 oil per the track-prep guide for track days? When I run the standard 5-30 I run slightly below 40 PSI. When I run the 5-40 I am closer to 45. Both these PSI readings are "most of the time" readings, meaning when I look, that's where they are. __________________ 2018 Red Hot 1SS, GM lowering kit & 1LE Sway bar kit, ZL1 1LE solid rear cradle bushings, BMR sway bar end links, GM CAI w/tune, Pray ported IM, Mamo ported TB, VS Forged VS07 rims 20x11 & 20x10 w/ Michelin PS4S

08-14-2021, 10:55 AM	#13
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,561	Yes thicker oil will increase pressure. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

08-14-2021, 02:47 PM	#14
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,485	at operating temp mine shows 30 psi idling, and it gradually increases to around 55 psi with rpm up to 6100 or so. at 6100 it jumps to 70+ psi. oil weight doesn't seem to make a difference. i've had 5-30, 0-40 & 5-40 in it. all the same except the heavier oils make a little more pressure when cold below 5k rpm. __________________ 2016+ camaro: everyone’s first car

08-13-2016, 03:12 PM	#2
Ventmaster Drives: 2017 1SS 6spd Join Date: Jan 2011 Location: Utah Posts: 3,022	I've noticed my oil press. has also always been much lower than my LLT V6. Never greater than 40 even at start-up (hot weather since I got the car). I'm sure it's dropping down in the 28-30 range when warmed up and at idle.

08-13-2016, 04:31 PM	#4
Tmcbigblue Drives: 2016 1ss black 6m Join Date: Apr 2016 Location: Kentucky Posts: 69	I'm in my ss now at warm idle and just a hair under the 30 mark. So the same as your ss.

11-18-2016, 09:11 PM	#5
DadsCam Drives: 2016 SS 6M, Mag Ride, Dual Ex Join Date: Aug 2016 Location: San Diego Posts: 3	Here's the thread I was looking for. Just watched mine for the first time SS, 28-29 fully warmed up at idle and lower rpms. Gets up to a little under 40 under rpms. Was wondering if this was normal myself. Seems like it is.

04-02-2019, 03:31 PM	#6
UrMaster Drives: 2016 Hyper Blue Metallic 2SS Join Date: Oct 2017 Location: IL Posts: 17	Mine sits about 30 maybe lil less when hot idling and 35 cruising. Rarely goes upto or over 40 unless I go WOT at which point only at very high rpm does it hit 50 or so. Is that normal? This is my second 2016 and I could have swore my first one had a little higher pressure then this.

04-03-2019, 12:35 PM	#11
MackSteelPrivateEye Banned Drives: 6 on the Flo' Super Sport Join Date: Jan 2011 Location: md Posts: 1,924	Not like old cars....OP now fluctuates depending on the engines requirements. No longer just what the pump pumps out. All controlled by sensors now.

User Name		Remember Me?
Password