What is the reason for water spraying from the exhaust pipe?

[Marian]

Water spraying from the exhaust pipe is a normal phenomenon. The specific explanation is as follows: In winter, incomplete combustion of gasoline produces white smoke from the exhaust pipe, which contains water vapor. When the water vapor passes through the exhaust pipe and encounters cold temperatures, it condenses into small water droplets. Over time, these droplets accumulate and may be expelled from the exhaust pipe. Water spraying from the exhaust pipe indicates that the vehicle is operating normally. The water is formed due to temperature differences. The higher the thermal efficiency of the engine, the smaller the heat loss, with most of the heat being retained within the cylinder. A small portion of the heat creates a temperature difference environment in the exhaust pipe, resulting in visible water coming out of the exhaust pipe.