Why does the car exhaust pipe emit white smoke in summer?

[ODavid]

There are two situations when the car exhaust pipe emits white smoke in summer: 1. Normal situation: The water vapor produced after gasoline combustion is normally discharged through the exhaust pipe. Due to the relatively low ambient temperature, the water vapor condenses into small droplets and becomes visible water vapor. 2. Fault condition: Some coolant enters the cylinder and is discharged with the exhaust gas. Due to the high temperature, it appears as water vapor. 3. Harm: White smoke from the exhaust pipe is an abnormal phenomenon. It is best to detect the cause, otherwise long-term discharge of water vapor from the exhaust pipe will corrode the exhaust pipe, causing it to rust and damage prematurely.