- The air filter traps dirt particles, which can cause damage to engine cylinders, walls, pistons, and piston rings.
- The air filter also plays a role in keeping contaminants off the airflow sensor (fuel injected cars) and sometimes in cleaning the air that enters the crankcase for crankcase ventilation.
- Air filter serves as a silencer for your car’s intake system.
- Your car can use more than 10,000 gallons of air for every gallon of fuel burned.
- It is best to check your air filter with every oil change.
- Check your air filter more often if you frequently drive in dirty and dusty conditions because it might require more frequent filter replacements.
- Driving with a dirty filter restricts the air entering the engine and if severe, can impact fuel economy and performance.