Normal oil pressure range

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May 4, 2010 | 02:11 PM

raymondh

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Instructor

Joined: Aug 2009

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Normal oil pressure range

Anyone know what the normal oil pressure range should be for a c5 with about 86,000 miles. Thanks in advance.

May 4, 2010 | 03:07 PM

CHJ In Virginia

Safety Car

Joined: Nov 2000

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From: Shenandoah Valley Virginia

Mine is a 40K car with a lot of track miles. I run 10/30 oil M-!. When warmed up = temp above 150 deg. the car shows 35 LBS at idle and 40-44LBS or so above 2K RPM. Hope that helps.

May 4, 2010 | 03:41 PM

killain

Race Director

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From: SE Pennsylvania

St. Jude Donor '03 thru '26

Oldtimer

When cold, my 2003 with 13K miles starts at 50 PSI and once warmed up it is usually at 40 PSI at idle, and if in stop and go traffic and the air on and in gear A4, it is at 30 PSI. If I'm not wrong, you should have 10 PSI per 1000 RPM's.

Last edited by killain; May 4, 2010 at 03:44 PM.

May 5, 2010 | 07:57 AM

mickey_7106

Melting Slicks

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From: East Oakland CA

40 psi cold and 30 psi warm (both at idle)

May 5, 2010 | 01:04 PM

Vetteman Jack

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Quote:

Originally Posted by mickey_7106

40 psi cold and 30 psi warm (both at idle)

That's about were mine reads.

May 6, 2010 | 06:54 AM

mickey_7106

Melting Slicks

Joined: Dec 2006

Posts: 2,367

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From: East Oakland CA

43 psi at 65 mph 1850 RPM

May 6, 2010 | 09:16 AM

Oldvetter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

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From: Waldorf MD

Per shop manual, you only need 8 psi at idle.

Mine runs 25 psi idle hot (235 F) and 35-45 psi while driving with revs around 3,000 rpms.

The pressure bypass is set at 72 psi.

May 6, 2010 | 01:30 PM

SCM_Crash

Le Mans Master

Joined: Jul 2009

Posts: 9,526

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From: Los Angeles California

Cold mine reads about 45, warm it reads 40 (both at cruise). But my car has 20K miles.

Last edited by SCM_Crash; May 6, 2010 at 01:34 PM.

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Nov 6, 2021 | 06:36 PM

Robert200

1st Gear

Joined: Nov 2021

Posts: 1

Likes: 0

I have a 1997 C5 46.000 miles oil sensor new reads 5 .

I changed my oil sensor now reads 4psi light to check gaguges is on. Disconnected wire pulled it out hooked up a manually gauge now reads 40 at start up cold 215 temp oil 30 psi 10% gain every 1000 rpm. Rev I get 65 or so . Can’t figure out what is going on I’m flustered

Last edited by Robert200; Nov 6, 2021 at 06:38 PM.