What’s the matter with the white smoke from the exhaust pipe of the Audi car

This is a normal phenomenon, because the moisture generated by the combustion and decomposition of fuel is condensed through the exhaust pipe to form mist. White smoke will appear from the exhaust pipe after gasoline is normally fueled. This is a normal chemical phenomenon and no additional treatment is required.

　　

After the gasoline is completely burned, water, carbon dioxide and some impurities will be produced. The phenomenon of white smoke from the exhaust pipe is more common in winter, especially when the car is just started. Because when the car is first ignited, the exhaust pipe and the air in the exhaust pipe are cool, and the water vapor is discharged from the cylinder to form water mist, which is the white smoke we see. If there is a lot of water in gasoline, when the water passes through the trachea just when the weather is cooler, the water mist will accumulate on the exhaust pipe, forming another common phenomenon is the exhaust pipe dripping. If this phenomenon occurs, it means that there is too much moisture in the gasoline, which will easily lead to insufficient power of the car and increased fuel consumption, which also means that the quality of the fuel added is not good.