ls3 oil consumption

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Jun 29, 2011 | 06:46 AM

foler

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Staging Lane

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ls3 oil consumption

hello...
What oil consumption is normal for stock ls3 engine (ls376/480)? BMW M5 E39 have 1L=1qt per 600 miles

Jun 29, 2011 | 08:08 AM

redtan

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From: Belmont, MA

GM says a quart every 3000 miles is normal...but I personally think anymore than 1/2 a quart per oil change interval is getting excessive.

Jun 29, 2011 | 08:40 AM

Death{AW}

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From: Minneapolis

thats way to much. You have problem somewhere.

Jun 30, 2011 | 03:49 PM

foler

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Staging Lane

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Quote:

Originally Posted by redtan

GM says a quart every 3000 miles is normal...but I personally think anymore than 1/2 a quart per oil change interval is getting excessive.

where you find this info?

Jun 30, 2011 | 04:48 PM

DietCoke

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From: Richmond Hill, GA

Mine eats a QT every 400-600 miles depending on how hard I am on it. Has since day one when it was brand new. Doesn't burn oil, just inadequate pcv system. Hope to remedy that in the future

Jul 2, 2011 | 09:43 PM

revtech101

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From: Newark, CA

My E38 which has the same motor as your E39 M5 consumed about a quart of oil every 6 months. I used it as my DD and put over 12k miles on it in a year.

Jul 4, 2011 | 06:33 PM

foler

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Staging Lane

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Quote:

Originally Posted by DietCoke

Mine eats a QT every 400-600 miles depending on how hard I am on it. Has since day one when it was brand new. Doesn't burn oil, just inadequate pcv system. Hope to remedy that in the future

This is total ridiculous. If I want to go on travel I need to pack 100000000qt oil. This is stupid in 21 century.

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Jul 18, 2011 | 06:58 PM

331billet

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The LS2 engine used low tension rings and caused some LS2 motors to consume more than a quart every 1000 miles. GM put out a TSB that any LS2 using more than a quart every 1000 miles, GM would replace the rings. this was back in 2007. in 2008 GM released another TSB that any LS2 motor using 1 quart every 1000 miles would get new pistons and rings. my LS2 used 1 quart every 1000 miles when it was new then at 18,000 miles used only 1/2 quart every 1500 miles.

I have not heard the same issue with the LS3.

sounds like u may have a warranty claim with ur LS376/480 crate motor.

do a leakdown test to see how much compression is getting by the rings or valve seals. usual is 2%-10% on a new engine. ur rings may not have seated properly, valve seals r bad, or oil is being pulled thru the intake, vaporized and burned. last item u would see carbon buildup on the floor beneath ur tailpipes.

Last edited by 331billet; Jul 18, 2011 at 07:04 PM.