How often should a vehicle’s air filter be replaced?

The recommended frequency for replacing a vehicle's air filter is typically every 12,000 to 15,000 miles, or as specified by the manufacturer. This interval is based on the average driving conditions and the amount of contaminants that can accumulate in the air filter over time. Monitoring and replacing the air filter within this range ensures that the engine continues to receive optimal airflow, which is vital for performance and fuel efficiency.

An air filter that is clogged can restrict airflow, leading to poorer engine performance, reduced fuel economy, and increased emissions. Additionally, manufacturers may provide a specific recommendation based on the vehicle model, which can vary due to different engine designs and driving conditions. Therefore, adhering to the manufacturer’s recommendations is the best practice to maintain effective engine operation.