The recommended frequency to change a car's air filter generally falls between every 12,000 to 15,000 miles or about once a year, whichever comes first. This interval helps maintain optimal engine performance, fuel efficiency, and prevents engine damage from dirt and debris
. However, this can vary based on driving conditions:
- If you frequently drive on dusty, dirt roads or in heavy traffic, the air filter may need to be changed more often, sometimes as frequently as every 6,000 miles
- Some manufacturers suggest intervals up to 30,000 miles or even 45,000 miles, but it is best to consult your vehicle’s owner manual for specific guidance
Regular inspection is also advised. You can check the air filter visually for dirt and clogging, and replace it when it looks dirty or damaged to avoid reduced airflow, decreased engine performance, and higher fuel consumption
. In summary:
- Change air filter every 12,000–15,000 miles or once a year under normal conditions.
- Change more frequently if driving in dusty or harsh environments.
- Always refer to your vehicle’s manual for exact recommendations.
- Regularly inspect the filter for dirt and damage.
This maintenance helps ensure better engine efficiency, fuel economy, and longevity
