Depending on the oil used, the oil filter has a different service life. The general mineral oil can be used for 3 to 4 months, and the semi-synthetic oil can be used for 6 months, and the full synthetic oil can be used for about 9 months. The oil filter can filter the dust and impurities in the air, oil and fuel. It is an indispensable part in the normal operation of the car. Compared with other auto parts, it is very important. When the oil filter reaches a certain service life under long-term working conditions, its working performance will decline and cannot play the role of filtering impurities to protect the engine. Therefore, it is necessary to replace the oil filter regularly. It is recommended to replace it once every 5,000 to 10,000 kilometers.

The role of the oil filter:
1. Under normal circumstances, the various parts in the engine are lubricated by oil to achieve normal work. However, the metal debris generated when the parts are running, the dust that enters, the carbon deposits oxidized at high temperatures, and part of the water vapor will be continuously mixed into the oil. Over time, the service life of the oil will be reduced, and in severe cases, it may affect the normal operation of the engine;
2. Therefore, the role of the oil filter is reflected at this time. Simply put, the role of the oil filter is to filter most of the impurities in the oil, keep the standby oil clean, and prolong its normal service life;
3. In addition, the oil filter should also have the characteristics of strong filtering ability, small flow resistance and long service life.