Why does water drip from the exhaust pipe after the car is turned off?

[LucilleFitz]

Water dripping from a car's exhaust pipe is generally a normal phenomenon, but there are exceptions. Here is an introduction to the relevant knowledge about water dripping from the exhaust pipe: 1. Water vapor condenses into liquid water: After normal combustion, the car produces carbon dioxide and water vapor. The water vapor condenses into liquid water, and when the amount of water vapor reaches a certain level, it is discharged through the exhaust pipe. 2. Abnormal dripping phenomenon: When the owner finds that the water droplets discharged from the exhaust pipe condense into lumps on the ground and the exhaust gas appears as a milky white oil mist, this is abnormal dripping. The owner needs to check whether the water in the engine cooling tank is abnormal.