How often should air filters be changed in a vehicle?

Changing air filters in a vehicle is essential for maintaining engine efficiency and overall performance. The correct interval for changing air filters is typically between 15,000 to 30,000 miles, depending on factors such as driving conditions, the type of air filter, and the manufacturer's recommendations.

Regular replacement of air filters is crucial because they keep dirt, debris, and contaminants from entering the engine, which can impede airflow and affect engine performance. A clogged or dirty air filter can lead to decreased fuel efficiency, increased emissions, and potential engine damage over time.

While some may recommend shorter intervals, such as every 5,000 to 10,000 miles or 10,000 to 15,000 miles, these guidelines may not take into account advancements in filter technology or specific vehicle requirements. Conversely, intervals over 30,000 miles might be too long for many driving conditions, especially in areas with a lot of dust or pollution. Thus, the range of 15,000 to 30,000 miles strikes a balance of maintaining engine health while considering varying conditions one might encounter.