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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]Yes, it's normal and it's also why you want to drive your car at highway speed for half an hour at least once a week - to burn the condensate out of the engine and exhaust system.[/quote]

This sounds like something my step-father would tell me but also like is has no basis in reality.[/quote]

Because your stepfather clearly understands more about cars than you'd ever know, even if you lived another hundred years. [/quote]

PP is right, there is no condensation in the engine and exhaust system when the car is not running. When the engine is turned off, it pumps at least one full cycle to take in fresh air and expel exhaust. The residual heat in the exhaust prevents any water vapor from condensing. By the time the exhaust cools, the air in the exhaust system has reached the same humidity as ambient air. [/quote]

Huh?

Do you even chemistry, bro? WTH are you talking about?

When gasoline is burned, the largest by-product produced is water vapor. Gasoline is a hydrocarbon. When it burns, the chemical reaction from that oxidation strips the hydrogen and carbon atoms apart, releasing heat energy. Most of these bond with oxygen atoms, producing carbon dioxide and ..... wait for it .... the stuff made from two hydrogen atoms and one oxygen atom.... called....... WATER !!!!

Water is THE biggest component of car exhaust.

When the exhaust system is cold, it condenses before it exits the system, turning back into water. After the exhaust system is fully warm, it remains a vapor all the way out the tailpipe. But water is constantly being produced whenever fuel is burned.

Do you not understand even basic junior high school chemistry, or what? [/quote]

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