Is it normal for the front of the vehicle to emit white smoke in rainy days?

In fact, it is normal for cars to smoke on rainy days. White smoke emitted from the exhaust pipe of a car in rainy days is due to the high humidity of the air, and the moisture in the air meets the high-temperature automobile exhaust, resulting in vaporization and giving people the illusion of white smoke.

In other words, the tail gas emitted by cars is still the same as sunny days, and its nature and color have not changed. The so-called white smoke is just that water in the air turns into steam when it meets high temperature. Similarly, the water vapor generated by the cooling tower spray system floats into the air and looks like white clouds rising from a distance.

In winter or when the weather is cool, it is because the ambient temperature is relatively low, especially in winter, the exhaust pipe of the car will emit white smoke and drip. In fact, this is a very normal phenomenon. This is because gasoline burns completely to produce water and carbon dioxide. Water is steam at high temperature, and steam is colorless and transparent at high temperature, but when the temperature is lower than 100℃, steam will condense.