Air filter, commonly known as air filter element, its role is to filter out the dust, sand and other impurities suspended in the air, prevent them from entering the engine, to provide the engine with clean and sufficient air. To put it bluntly, it acts as a protective mask for the engine, allowing the engine to breathe cleanly, harmlessly and smoothly. So how long is the life of the air filter? Chen Hair Hong xiaobian to everyone to understand:

There are two types of air filters: dry and wet.

Dry air filter 20,000 km or so

The air filter for family cars is generally dry and has a service life of about 20,000 kilometers. Xiaobian suggests replacing it for 20,000 kilometers.

In fact, the service life of the air filter and the environment of the car is relatively large. If the car is often used in foggy days and windy sand, it may be 10,000 kilometers to replace, or even less than to replace it.

You can clean it up and use it again, no more than three times

So try to check every maintenance, the air filter is clean, can not just look at the number of kilometers to.

If it is dirty, it can be cleaned up and used again. It is not necessary to buy a new one every time, but note that the performance of the air filter after cleaning is not as good as the new one. It needs to be checked frequently, repeated almost three times, and thrown away for a new one.

Wet air filter can be used repeatedly

Another kind of air filter is less common on family cars. It is the wet air filter, which is also divided into oil immersion and oil bath type. It is generally used in construction machinery and heavy trucks. It can be used repeatedly, as long as it can be cleaned and maintained, but the filtering effect is not as good as dry type.