The engine has air, oil, fuel three kinds of filters, the car has air conditioning filters generally known as "four filters".
A, the oil filter is located in the engine lubrication system.
B, the fuel filter carburetor and EFI type, the use of carburetor gasoline engine.
C, automotive air filter is located in the engine intake system, it is an assembly consisting of one or several clean air filter components.
D. Auto air conditioning filter is used to filter the air inside the car cabin 。