The oil filter is located in the engine lubrication system.Its upstream is the oil pump, the downstream is the engine needs to be lubricated each component.Its function is to filter out harmful impurities in oil from oil sump, and supply clean oil to crankshaft, connecting rod, camshaft, supercharger, piston ring and other moving pairs, so as to lubricate, cool down and clean them, thus extending the life of these parts. The oil filter is located in the engine lubrication system.Its upstream is the oil pump, the downstream is the engine needs to be