Keeping the air filter clean and replacing it when necessary is essential for maintaining the performance and lifespan of your Japanese used car or used truck. The air filter plays a vital role in preventing dirt, dust, and other particles from entering the engine. A clean air filter allows for optimal airflow, improving engine performance, fuel efficiency, and reducing emissions. If you want to import any Japanese vehicles to Country, please check our list. The list of Japanese Used Cars, Truck and Bus, Farm tractors for sale | EVERYCAR.jp (*Click to open).