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What is wrong with your 1998 Saturn sl1 it is blowing white smoke out of the exhaust?
Wiki User
∙ 13y ago
It's the same for all internal combustion engines.
When gasoline burns inside the combustion chamber, it produces carbon dioxide and water vapor. The water vapor is usually hot enough that you don't see it, but when the weather is cold, and while the exhaust is still cold, some of the water vapor will condense together with other water vapor molecules, producing a visible mist that looks like white smoke out the tailpipe.
It's normal.
On the other hand, once the engine is warmed up, if the white smoke continues and if you notice that the engine is using a lot of oil, it may be that the rings and/or valve stem seals are leaking, allowing oil to enter the combustion chamber. When that happens you'll get some oil burning, which may look whitish-blue.
Wiki User
∙ 13y ago
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