Automatic intelligent car washing machine washing frequency For friends who often drive, the best frequency of car washing is 2-3 times a month. If the frequency of car washing is too frequent, it is likely to accelerate the surface oxidation of the car paint, but if the car is not washed for a long time, the dust on the surface of the body will adhere to the car paint, which is more difficult to clean. So how should we wash the car correctly, the following automatic intelligent car washing machine to tell you. We first see in which cases is the need to wash the car, if you are out to run high speed, or play around, the car surface will certainly have ash and some small stones, and even some roads are mud roads, there are branches on both sides of the road, causing dirt on the car surface, this time we will wash the car. The second is that after haze or acid rain, because of haze or acid rain, the car is suddenly polluted, which is relatively harmful to the car. In…