The filter element machine is the part that filters the oil. Engine oil contains a certain amount of colloids, impurities, moisture and additives; during the working process of the engine, metal scraps generated by friction of various parts, impurities in the inhaled air, oil oxides, etc., are all filtered by the oil filter. If the oil is not filtered and directly circulates in the oil circuit, it will adversely affect the performance and life of the engine.
2. The content of major maintenance: Major maintenance refers to the routine maintenance of replacing the oil, oil filter, air filter, and gasoline filter at the time or mileage specified by the manufacturer.