When we maintain the vehicle, under normal circumstances, the four filters should be replaced at the same time. What is four filters? 

What is four filters?  It refers to the oil filter, air filter, Cabin filter, fuel filter.

Oil Filter 

Automotive oil filter acting on the engine lubrication system, to clean the oil, then supply crankshaft, connecting rod, camshaft, turbocharger, piston rings and other sports vice-member. Oil filter has lubrication, cooling and cleaning effect to protect the engine running effeciency.

Air Filter

Air filter is located in the engine intake system by one of several clean air cleaner element consisting of assembly. The main function of air filter is to filter the air to enter the cylinder of harmful impurities in order to reduce the wear and tear of early cylinders, pistons, piston rings, valves and valve seat.

Cabin filter
Car cabin filter is used forair circulationfiltration in the passenger compartment. Filter promptly filtered air inside the cabin, as well as into the cabin air’s dust、impurities、pollen and so on , in order to ensure the health of passengers. While air-conditioning filters can avoid windshield fogging.

Fuel Filter

Automotive fuel filter can divide into Carburetor filter and EFI filter. Carburetor filter gasoline engine and fuel pump filter are located on the side of oil pump inletwith lower work pressure , and it generally use nylon housing; engine equipped with EFI filter and fuel filter are located on the side of pump outletwith higher work pressure, and it usually use metal housing.

Automotive filters (oil filter, air filter, cabin filter, fuel filter) should be replaced timely according to the driving kilometers and driving condition,in order to maintain your vehicle better.