The air filter element is the same as the mask we wear in the haze days, the main thing is to block the dust and sand in the air and other impurities, don't look at this component is insignificant, the price is not expensive, but the role is extremely important. Some people have done an experiment before, if you remove this air filter from the car, and then drive as usual, the result is that the degree of wear of the cylinder is eight times that of the car with an empty filter, the degree of wear of the piston is three times, and the piston ring is nine times. In other words, without this air filter, the engine is scrapped for two or three years, in addition, it also has other hazards. So many impurities in the air run into the combustion with gasoline, it will cause insufficient combustion, impurities deposited residue, resulting in carbon deposition, so the car will lack power, increase fuel consumption, and then enter such a vicious cycle, and finally the car will be wasted.

Normally speaking, the manufacturer's maintenance manual will remind the replacement cycle of the air filter, under normal circumstances, the air filter is recommended to be replaced once at 10,000-15,000 kilometers, because the air filter blockage will affect the intake of the engine for a long time, so that the air-fuel ratio in the engine changes, thus affecting the combustion process. The internal carbon accumulation of the engine, the idle speed is unstable, the power is reduced, and the fuel consumption is increased.

In the actual process of using the car will encounter a variety of situations, therefore, there is no absolute standard for the replacement of the air filter, because it depends on the amount of dust and impurities absorbed by the air filter. The same is an air filter, in a long-term driving on the highway vehicle, it can be used 30,000 kilometers or even longer before replacement; For an off-road vehicle that shuttles between the countryside, it may need to be replaced within two months. Of course, these two cases are more extreme, for ordinary urban vehicles, it is more appropriate to replace the air filter every year or every 2 kilometers.

Of course, the time or mileage of the vehicle, these are only reference values, and the factor that ultimately determines whether the air filter needs to be replaced is: whether it has been unable to let enough air through. The air filter should ensure that the impurities in the air are filtered out, while allowing enough air to enter the engine.

It should be noted here that the air filter that has been working for a period of time is actually more efficient than the new air filter. This is because the impurities that the air filter has already adsorbed can help it to trap more tiny dust. Eventually the air filter will accumulate too much dust and affect the operation of the engine. Fuel economy, power, and emissions tend to deteriorate until you get a new air filter. Note: The air filter that looks dirty does not mean that it can't work normally, so whether it needs to be replaced depends on the condition of the vehicle.