1. Filter housing damage

6. Filter without bypass valve, the use of time is too long or oil impurities, not timely replacement of filter paper to cause blockage of oil spills

7. Automotive oil road plug caused by excessive pressure, resulting in damage to the filter

8. Low temperature temperature before driving car, oil flow, pressure, or the use of inferior oil, resulting in clogging of filter paper. If the driver's license suddenly accelerated, will cause excessive pressure to destroy the oil filter

9. On the oil pressure limiting valve is too high, oil filter paper filter blockage, no safety valve set, resulting in excessive oil pressure, oil filter damage