How often does Li Xia clean the throttle?

Motor vehicles need to be cleaned once they travel to 20,000 km or 40,000 km. The throttle of a motor vehicle has a certain relationship with the vehicle environment. If there is too much dust in the area used by motor vehicles, it is necessary to clean the accelerator of the vehicle in advance. If it is often used in urban areas, the cleaning time can be extended. The throttle used in cars is a controllable valve to control the air entering the engine. After entering the trachea, the gas will be mixed with gasoline to form a combustible mixture, which will be successfully formed after combustion. It is connected with the air filter above and the engine body below, which is called the throat of the automobile engine.