Excessive oil consumption on my 01 SL2 after changing valve cover seal

Banksy · 02-14-2020, 01:28 PM

Hello,

I have a 2001 SL2 with 185k

Changed the valve cover gasket a few months back and it's going though about 2.5 qts per 5k

Before this it was going though about one.

I checked around the gasket and there is nothing leaking out from what I can see. I don't notice oil anywhere on the engine either.

Any idea of what is going on here? I know SL2s burn oil I've had three now. However Im wondering if me changing the gasket had something to do with this.

onlinebiker · 02-14-2020, 01:57 PM

That is not excessive.

GM would not replace an engine under warranty unless it used a quart in under 750 miles.

Over 1500 miles per quart is quite good.

1996SL11.9L · 02-22-2020, 12:23 PM

I would say the extra vacuum from sealing up the valve cover is pulling more oil vapor through the PCV.

02-14-2020, 01:28 PM	#1
Banksy Member Join Date: Oct 2019 Posts: 50	Excessive oil consumption on my 01 SL2 after changing valve cover seal Hello, I have a 2001 SL2 with 185k Changed the valve cover gasket a few months back and it's going though about 2.5 qts per 5k Before this it was going though about one. I checked around the gasket and there is nothing leaking out from what I can see. I don't notice oil anywhere on the engine either. Any idea of what is going on here? I know SL2s burn oil I've had three now. However Im wondering if me changing the gasket had something to do with this.

02-14-2020, 01:57 PM	#2
onlinebiker Senior Member Join Date: Dec 2015 Location: sw michigan Posts: 1,598	Re: Excessive oil consumption on my 01 SL2 after changing valve cover seal That is not excessive. GM would not replace an engine under warranty unless it used a quart in under 750 miles. Over 1500 miles per quart is quite good. ... Currently owned 96 SC2 Manual 98 SL2 A(uto) 99 SC2 A 01 SC2 A 01 SC2 M 02 SC2 M (2 cars) 02 SL2 A 02 SL2 M parts 2 94 SC2 parted out 2 96 SC2 98 SC2 - rusty frame minus engine. 98 SL2

02-22-2020, 12:23 PM	#3
1996SL11.9L Master Member Join Date: Sep 2009 Location: Stouchsburg, PA Posts: 2,013 1996SL11.9L's Photos 2002 SL1	Re: Excessive oil consumption on my 01 SL2 after changing valve cover seal I would say the extra vacuum from sealing up the valve cover is pulling more oil vapor through the PCV.

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