When is the air filter replaced according to the inspection list?

• A. Replace air filter as needed for performance
• B. Replace oil filter every 5000 miles
• C. Check tire pressure
• D. Flush fuel injectors

Answer: (A)

Air filter replacement is based on its condition during an inspection. It should be replaced when the filter is dirty, clogged, or when airflow is restricted, which can impair engine performance and efficiency. This condition-driven approach keeps the engine breathing clean air without unnecessary replacements.

The other items listed are separate maintenance tasks: replacing the oil filter on a fixed mileage schedule, checking tire pressure, and flushing fuel injectors are not describing when to replace the air filter, but rather different maintenance actions or checks.