Oil PSI
Melting Slicks
Joined: Jul 2000
Posts: 2,483
Likes: 1
From: Wilmington DE
Re: Oil PSI (Red79EB02)
Red79EB02:
The oil pressure at idle will vary dependent upon the Viscosity Grade of oil you have in the crankcase (SAE 5W-30 vs 10W-40), the temperature of the oil (cold oil will have a higher pressure) and the idle speed.
On a 60 degree morning, and 10W-30 Mobil 1 in the crankcase, my oil pressure at idle is about the same as yours. The psi that you have seen in quite normal for the LS1 engine. Happy Motoring :)
The oil pressure at idle will vary dependent upon the Viscosity Grade of oil you have in the crankcase (SAE 5W-30 vs 10W-40), the temperature of the oil (cold oil will have a higher pressure) and the idle speed.
On a 60 degree morning, and 10W-30 Mobil 1 in the crankcase, my oil pressure at idle is about the same as yours. The psi that you have seen in quite normal for the LS1 engine. Happy Motoring :)
Racer
Joined: Feb 2002
Posts: 299
Likes: 0
Re: Oil PSI (Red79EB02)
Higher when she's cold, of course. When she first starts up (warm garage) at idle the pressure is about 45 or so. Once she's at 192, oil pressure at 1700rpm rolling down the road is straight up at 40. She'll drop to 30-32, fully warmed up and sitting at an idle (MN6) at 800 rpm.
Instructor
Joined: Jan 2002
Posts: 132
Likes: 0
From: Littleton MA
Re: Oil PSI (Gunny)
I noticed this also on my 2000. With the oil warmed up to normal temp. the guage reads between 32 and 38 at idle. My 98 SS warmed up oil temp nevers falls below 40 psi. at idle. Both cars use 5W-30 Mobile 1.
Both cars cold will run at 45 psi. :chevy
Paul
Both cars cold will run at 45 psi. :chevy
Paul
