What does white smoke from exhaust pipe mean? White smoke from exhaust on cold startup is usually not a problem When you start a cold engine, the computer commands a rich fuel mixture. The exhaust produced from a cold engine and rich fuel mixture produces a lot of hot water vapor from the exhaust. As soon as that hot water vapor his the cold air, it condenses, forming thin white smoke. It’s not really smoke. In fact, it like like a very thin mist of white vapor. If the white … Read More
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