The fake and inferior oil filter is damaged, the filter paper is of poor material, and it is immersed in the engine oil for a long time. The filter paper itself has poor filtering effect under the high temperature and high pressure environment. At the same time, it also produces a large amount of paper scraps, which causes the oil circuit of the engine lubrication system to be blocked or the parts to be worn abnormally. In serious cases, the engine will not be loaded with oil, causing serious damage or scrapping of the engine.

The gasket of the sealing part of the fake oil filter is easy to crack due to the poor toughness of the rubber and aging at high temperature, so the oil is easy to jump out of the interface between the engine filter and the cylinder block, resulting in oil leakage, poor engine heat dissipation and other failures, and even cylinder explosion in serious cases.

Generally, all parts in the engine are lubricated by engine oil to achieve normal operation. However, metal chips, incoming dust, carbon deposits oxidized under high temperature and some water vapor generated during the operation of parts will continuously mix with the engine oil, and the service life of the engine oil will be reduced after a long time, which may affect the normal operation of the engine in serious cases.

The oil filter is mainly used to filter most impurities in the oil, keep the oil clean and extend its normal service life. In addition, the oil filter should also have strong filtering capacity, small flow resistance, long service life and other properties.