the check oil light doesnt tell me when i am low on oil, it can have anywhere from 2 1/2 to 3 quarts in it and no warning lights up . the car smokes when i start it like a blueish and smells like burnt oil why does it do this
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2001 Saturn L300 Question: Why wouldnt my oil light come on and the car only has about 2 1/2 to 3 quarts,
Answer #1milesauto from Miles Auto Service Inc., September 25, 2013, 11:34Master
Oil light works when pressure is very low....would have to be virtualy no oil in pan for it to come on.
Answer #2Rojo1 September 25, 2013, 12:25Technician
Some vehicles do have a low oil level warning light on the dash but I do not think yours is one of them. If the engine emits bluish smoke from the exhaust on cold start, the most likely cause would be either worn exhaust valve guides or dried up valve stem seals in the cylinder head. When an engine is shut off, oil that is pumped to the valve train can remain in the top of the head for a short time before draining to the pan. This is when some of the oil can leak down past the seal, between the valve and guide and into the cylinder. When you start the engine, the oil that leaked into the cylinder will burn with the fuel and cause the smoking.