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Ls4 oil pressure

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Old Feb 18, 2009 | 04:12 PM
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Default Ls4 oil pressure

just curious for those that have the ability to monitor your oil pressure what kinda of oil pressure your seeing in the ls4.

runnin RP 5w30 for oil

when I idle at the 850rpm I'm getting around 15psi
when I drop idle down to about 550 oil pressure drops close to 9psi
under WOT max I see is about 44psi
cruising at 75 I'm hovering between 33-35psi

how low is to low for oil pressure on these motors? The car never throws low oil pressure message so meh :<
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Old Feb 18, 2009 | 04:21 PM
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I have never seen my oil pressure lower than high 30's.
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Old Feb 18, 2009 | 05:39 PM
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you guys have oil pressure gauges?
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Old Feb 18, 2009 | 07:27 PM
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Originally Posted by williamGT
you guys have oil pressure gauges?


yeah I'm asking the same thing!?!? LOL!!
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Old Feb 18, 2009 | 07:33 PM
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just one of the things I monitor while I do scans with HPT. I'm still messing with the tune a lot learning as I go so figured I'd ask.

Aaron what kind of oil are you using in your car?
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Old Feb 18, 2009 | 07:37 PM
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Oh I see,...............
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Old Feb 18, 2009 | 09:33 PM
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I have a dashhawk
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Old Feb 19, 2009 | 01:28 AM
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I'm using 5w30 RP, the warning sensor doesn't come on till about 5psi, those numbers are dangerously low, if your gauge is reading correctly than you need to take it to the dealer to find out what the problem is
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Old Feb 19, 2009 | 07:27 AM
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Where would you connect an oil pressure gauge to monitor the oil pressure
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Old Feb 19, 2009 | 01:43 PM
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jesus thats horribly low at idle... My camaro with all 5 main bearings killed held oil psi better than that idle. Your tuner shut off all DOD function etc in the pcm right? maybe that valley cover gasket around the oil towers are leaking? idk but thats kinda eff'ed up.

Cant say ive ever seen a LS motor in good working order less than 30 psi at idle and usually tops 60 at WOT
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Old Feb 19, 2009 | 03:10 PM
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5psi? WTF thats low.
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Old Feb 19, 2009 | 03:19 PM
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the damn sensor doesn't come on till your engine is already shot
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