Small maintenance items:
　　1, the oil is the engine running oil. It can lubricate, clean, cool, seal and reduce friction. It is of great significance to reduce the wear of engine parts and prolong the service life.
　　2, oil filter is a filter oil components. Oil contains a certain amount of gum, impurities, water and additives; In the process of engine operation, metal chips generated by friction of various parts, impurities in the air inhaled, oil oxides, etc., are all the objects filtered by the oil filter element. If the engine oil is not filtered and enters the oil circulation directly, the engine performance and service life will be adversely affected.
　　This paper is sorted out by dongguan oneness filtration technology co., LTD