Cars, replacing the "filter" to be seen the car use, maintenance and oil quality grade and other circumstances, if a car all the year round in the small gas station refueling,run the country dirt road in the mountain hills, long distance running, the air filter 2000- 3000 km should be cleaned the dust or replace. If the condition maintenance is good, in the city open, 1 - 20000 km for the first air filter is also no problem. Noseautomobile air filter is equivalent to the human, is the first hurdle to pass through theair into the engine, through the barrier effect of filter paper to filter the air. When the dust to filter paper surface pore block, it will cause a blockage, which directly affect the car's engine, the occurrence of unimaginable consequences. Because the air filterin direct contact with the outside world, so it is prone to jam, then the engine will beaccelerated weak and unstable idle speed and other symptoms, the normal work ofthe air filter can avoid maintaining optimum working state and premature engine wear.

The atmosphere contains basic particle pollutants of three kinds of different density,that is, dust, residue and carbon particles. The open highway dust content is low, but the automobile emission concentration, so that the content of carbon in the airparticles significantly higher, so we should strengthen the examination of air filter.While in the dust concentration in the larger region, such as the site of aeolian sandregion, air filter inspection and replacement frequency should be higher. In addition,now the car air filter mostly made of paper, when the air filter after damp, inlet is blocked, so that the vehicle be accelerate the powerless, what is more serious is thatwhen the water is sucked into the engine cylinder internal enter, because water is incompressible, will cause the internal motion of engine parts damaged seriously,even engine scrap. A lot of repair factory technicians, often with high pressure airfilter. In fact, the direction of the wind is very important, if from inside to outside blowair filter, then the impurity downwind air filter is blown into the engine, not only failed toeliminate hidden dangers, but run counter to one's desire. At this time should be from outside to inside blow, so that we can protect the air filter, removing impurities. The above said perhaps few people pay attention to, but the car parts if problems occur,the most serious threat is the result of travel safety, so we would in normal times and spend more on these small parts, and don't because of these small components and the influence of the active force of automobile parts. The car is a car maintenance, for the people, change garments according to the season first thought is seasonal maintenance. After a summer of "rush", also should do to give it an autumn maintenance.