Air filter: it is used to filter dust impurities in the air let clean air enter the engine, which is very important for the service life normal operation of the engine. The dust impurities absorbed by the air filter will be blocked affect the engine operation, so it must be replaced regularly. If you drive in a dusty place, such as a place with a sandstorm, the cycle of replacing the air filter should be shortened.

High quality bucket tooth casting battery: storage of electric energy, usually lead battery, electrolyte is dilute sulfuric acid.

Brake fluid: brake fluid as it is usually called. Now the car's brake is usually hydraulic, that is to use brake fluid as the medium to transfer the force of the brake pedal to the brake disc.

Ignition coil of high-quality agricultural casting: change low voltage into high voltage, generate electric spark through the discharge of spark plug below it, ignite the oil-gas mixture to do work.

Engine oil: This is also needless to say, the mineral oil synthetic oil that plays the role of lubricating sealing. If the engine is lack of oil lubrication, there will be serious problems such as cylinder pulling bearing.

Power steering oil: at present, the power steering of the car is generally the traditional hydraulic power. Since it is the corresponding hydraulic power, it needs the oil medium. Of course, some cars have begun to use electric power, which is also the future development trend.