How Often Should You Change Your Car's Air Filter?

Replacing your car's air filter is an important part of routine vehicle maintenance. The frequency of replacement depends on the type of vehicle, driving conditions, and manufacturer's recommendations. Generally, it should be changed every 30,000 miles or every two years. However, if you drive in dusty or harsh conditions, you may need to change it more often.

At the very least, you should inspect your air filter every 6,000 to 10,000 miles. If it looks dirty, it's probably time to change it. The recommended interval for your vehicle will be detailed in the maintenance program section of the owner's manual. When replacing your car's air filter, you should also check the cabin air filter.

Cabin air filters tend to get dirty faster than engine air filters and need to be replaced more frequently. The cabin air filter is usually located under the dashboard and behind the glove compartment. If a clogged filter reduces the amount of air entering, those controls reduce the amount of fuel accordingly to maintain the proper mix of driving, emissions, and other factors. Repair shops will likely charge you for the installation of a new air filter.

A number of aftermarket air filters promise to increase power and acceleration by creating better airflow. In any case, it is a smart and proactive policy to inspect at least the air filter every 6,000 miles (9,656 kilometers). This is a sign that the engine is receiving the right amount of air and oxygen.