oil burn? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-16-2011, 09:05 AM   #1
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Default oil burn?

So i went out for start up yesterday and the oil level light came on then went away, go out and check and its at the add 1 qt mark. I have put quite a few miles on since the last change, so is this normal?
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Old 03-16-2011, 09:09 AM   #2
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1 quart per oil change is about right on a high mileage car. Check around the valve covers to see if there'* any seeping. This is a common place to loose oil. Also, look under the car. Peek at the bolts holding the oil pan on. The pan gasket also starts to leak over time.
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Old 03-16-2011, 09:19 AM   #3
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Will do, thank you for the speedy response
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Old 03-16-2011, 11:38 AM   #4
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didnt see any leaking out of the gaskets but when i pulled the cap off i noticed some yellow gunk collected around the cap
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Old 03-16-2011, 11:47 AM   #5
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Makes me think you need a new PCV valve. Oil usage can increase if pressure builds inside the crankcase. When you pull the oil cap off with the engine running, is there a smoky vapor coming out the hole readily?
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Old 03-16-2011, 01:14 PM   #6
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Yep, check that PCV.
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Old 03-16-2011, 01:55 PM   #7
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Thats what I thought too but a bit bigger problem now, I put 1 qt of castrol high milage synthetic blend in and also a can of 6cyl engine restore, I was driving around and noticed my pressure dropped badly, not moving much past 40lb, could my sending unit have gotten gummed up from the engine restore or did i add too much to the engine?
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Old 03-16-2011, 02:05 PM   #8
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The engine restore is the silver can with the soda can style pop top, supposed to lubricate the crankcase and restore compression and all that good stuff. Made by Restore
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Old 03-16-2011, 02:36 PM   #9
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Not trying to be clever but did you put the recommended weight oil in?.
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Old 03-16-2011, 02:38 PM   #10
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10w 30 yes
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