The engine would wear out unusually fast without an air filter, especially with modern high-speed machines. If the car does not install an air filter, the wear of the cylinder will increase by 7 times, the wear of the piston will increase by 3 times, and the wear of the piston ring will increase by 8 times.
If it is not replaced in time, the engine will have insufficient air intake and incomplete fuel combustion, resulting in unstable engine operation, reduced power, and increased fuel consumption. Therefore, regular replacement of the air filter is not only helpful for maintaining the engine’s power performance but also beneficial to the economy of car maintenance.