Three filters, sometimes called three cleaning, refer to air filters, oil filters and gasoline filters, which are used for decontamination and storage, so timely cleaning is helpful to improve the working environment inside the automobile body.

Air filter:

The function of the air filter is to filter the air before it enters the cylinder, so as to remove impurities, dust, sand and other foreign bodies entrained in it.

In general, the cleaning and maintenance cycle of air filters is 6000-8000 km. But sometimes, although the replacement time or mileage has not yet arrived, the inside of the filter element is covered with dust or oil pollution and must be replaced immediately. Air filters are divided into dry and wet types, and most cars use dry air filters.

Oil filter:

Its function is to remove all kinds of impurities in engine oil and ensure the normal lubrication system. When changing the oil, you can change the oil filter with oil. Note: When installing a new filter element, don't tighten it too tightly with a filter wrench to avoid damage.

If the oil filter is blocked, replace the oil filter or clean, dry and reuse the dirty filter element. If the filter element gasket is damaged and leaks oil, it needs to be replaced, or it can be replaced by cutting out the original gasket shape with cloth of the same thickness.

Gasoline filter:

The gasoline filter should drain water and sediment once a week, and the interval between cleaning and replacement is generally 2000-3000 km.