A dirty air filter can decrease your car’s power and fuel economy. Knowing how to change the air filter yourself can save you some money and keep your engine running optimally. The air filter should normally last around 30,000 miles, however a car driven regularly on dirt roads will need its air filter serviced much more frequently than one that is always driven on the interstate.
Unless your car already has a reusable filter the first thing you’ll need to do is purchase the appropriate replacement air filter. The proper type should be specified in the owner’s manual or can be looked up at the parts store. If you plan on keeping your vehicle for some time it may be more economical to purchase a reusable filter and cleaning kit that you can use for the rest of the car’s life.