1999 Buick LeSabre Q&A
1999 Buick LeSabre Question: Oil Burning
I've been noticing my car is burning up oil but not at a fast rate. But I want to know if there could be a problem with it? I don't see any leaks, my car smells like it runs somewhat rich I believe, and it goes through a bout a quart or less. I use Mobile 1 Synthetic Motor Oil 10W-30. - fire42390
How many miles? You ned to get it on a lift and look for a leak. - mahindra
First off when did you start using full synthetic oil , and did you flush the engine before switching from crude ? The reason I ask is I have a Toyota van with 258,000 miles on it and the vehicle was on crude oil and I switched to synthetic , then I started to get a burnt oil smell and started to use oil , the vehicle didn't leak , but when I pulled off the valve covers I found that there was a sludge build up that caused the return galleys to plug and oil was cooking on top of the valves , hench the burn smell and the consumption of oil , I cleaned out the clogged oil galleys and flushed the engine with a 10min. motor flush and changed the oil to the synthetic brand I was using and haven't had a problem since , I hope this can help you out , Kevv - kevvs
this vehicle uses 1 quart of oil between 1,000 - 2,000 miles. No sign of oil leaks under motor. No blue smoke out exhaust.
index. Yesterday message came on again and showed 76% normal oil life index (oil pressure 36 psi if it is relevant). We have had only 2021 miles added since last oil change which was done April 17...
I already replaced the intake manifold gaskets. I don't see any leaks or smoke and it runs fine. The engine sounds great, but recently was down 3 quarts of oil
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