What Causes White Smoke from a Car's Exhaust Pipe?

[VanAdam]

White smoke from a car's exhaust pipe is most likely caused by wear in the engine cylinder's gasket, creating a gap that allows a significant amount of coolant from the cooling system to enter the combustion chamber. The water, which cannot be burned, turns into steam when heated and is directly expelled through the exhaust pipe. Below are relevant details: 1. If your car is emitting white smoke, promptly inspect the engine block and cylinder gasket for damage, and check the fuel tank for any water accumulation. If you've just purchased a new car, carefully review the car's manual and strictly follow the manufacturer's guidelines for adding the correct grade of gasoline. 2. White smoke from the exhaust is quite common in winter. The water vapor produced by gasoline combustion is normally expelled through the exhaust pipe. Due to the low external temperature, the water vapor condenses into small droplets, becoming visible steam to the naked eye.