What Causes Moisture in Car Exhaust?

[Cinna]

The main reasons for moisture in car exhaust are as follows: 1. Part of the water flowing from the exhaust pipe comes from the moisture in the fuel, and part comes from the humidity in the air, especially during cold seasons or when the weather is particularly humid. 2. The car expels the combustion byproducts, which cool down in the exhaust pipe and form water. The amount of water flow depends on the car's performance and displacement; cars with better performance and larger displacement tend to have more water flow. 3. The car engine inhales air and atomized gasoline, which is then ignited by the spark plug to perform work. After complete combustion, the combustible gas becomes exhaust, the main components of which are carbon dioxide and water vapor.