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Cars and Transportation
Reply to "Water from one tailpipe"
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[quote=Anonymous]No, there is no condensation in the engine and exhaust systems if the car is just sitting. The water from the tailpipe is due to the exhaust being cold when you first start the car in cold winter months. Water vapor is a natural product of the combustion cycle. This vapor condenses as it passes through the cold exhaust pipes and collects as droplets of water. As the car is driven, the exhaust heats up and vapor no longer condenses, and thus no more water droplets. In very cold winters, there will always be some water sputtering out as the muffler never heats up enough to prevent condensation. Also, condensation doesn't happen as much in summer months as the ambient temperature is higher than the dew point of the water vapor passing through the exhaust. [/quote]
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