The counterfeit oil filter is damaged, the filter paper is of poor material, and it is soaked in the oil for a long time. The filter paper itself has a poor filtering effect in a high temperature and high pressure environment. At the same time, a large amount of paper dust is also generated, which causes blockage of the oil circuit of the engine lubrication system or abnormal wear of parts.

The role of automobile oil filter:
1. The automobile oil filter is located in the engine lubrication system. Its upstream is the oil pump, and its downstream is the parts that need to be lubricated in the engine;
2. The function of the machine filter is to filter out harmful impurities in the oil from the oil pan, and supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other motion pairs with clean oil for lubrication, cooling and cleaning;
3. In order to reduce the frictional resistance between the relative moving parts in the engine and reduce the wear of the parts, the oil is continuously delivered to the friction surface of each moving part to form a lubricating oil film for lubrication.