The function of oil filter is to filtrate the harmful impurites in the oil that comes from oil pan and it can provide bent axle, connecting rod, camshaft, supercharger, piston ring and so on with the pure oil. It can have the function of lubrication, cooling, cleaning and then prolong the lifetime of this parts.

 

The oil filter can be divided into two kinds: one is shell and element combined and the other is shell and element seperated.

The problems will be caused if not replace oil filters regularly
 The function of the oil filter is to filtrate the impurities, so it needs to be replaced with oil. If not replaced, the impurities in the oil will accerlate the wearing of the engine parts without filtration of the oil

The consequence of using bad quality oil filter

The qualitified oil filter should have high power of filtration, the low resistance of circulation, high-temperature resistane and long lifetime. While bad quality product will not be high temperature resisitance , bad leakproofness, paper element is easily broken, which will affect the function of the oil filter in light aspect and fix the engine if seriously.