Does the air filter need to be replaced if it is not dirty for three years?
If the air filter is not replaced for a long time, check that it is not dirty, it is recommended to choose whether to replace it according to the replacement mileage in the vehicle maintenance manual. Because the evaluation of the quality of the air filter element is not only an indicator of whether the surface is dirty, the air resistance size and the efficiency of filtration will affect the intake effect of the engine.
The role of the automobile air filter is to filter out harmful impurities in the air that will enter the cylinder to reduce the early wear of the cylinder, piston, piston ring, valve and valve seat. If the air filter accumulates too much dust or the air flux is insufficient, it will cause the engine intake to be poor, the power is insufficient, and the fuel consumption of the vehicle will be significantly increased.
Car air filters are generally checked every 10,000 kilometers, and replaced every 20,000 to 30,000 kilometers. If it is used in areas with large dust and poor ambient air quality, the maintenance interval should be shortened accordingly. In addition, different brand models, different engine types, the inspection and replacement cycle of air filters will be slightly different, it is recommended to check the relevant provisions in the maintenance manual before maintenance.
