Why is water dripping from the car's exhaust pipe?

[AddysonFitz]

The reason for water dripping from the car's exhaust pipe is: During the driving process, gasoline undergoes complete combustion inside the engine. After complete combustion, gasoline produces water and carbon dioxide. When the temperature drops below 100 degrees Celsius, the water vapor condenses into water and drips from the exhaust pipe. The conditions for water dripping from the car's exhaust pipe are: 1. The air-fuel mixture ratio must meet the normal value; 2. The engine cylinder pressure is normal, with no significant wear inside the engine cylinder block, and the cylinder liner and sealing ring components are intact; 3. The exhaust temperature is normal, with most of the heat generated by the engine remaining inside the cylinder.