How To Clean The Air Filter To Maintain Optimal Engine Performance

A dirty air filter restricts airflow to the engine, leading to incomplete combustion, reduced power, and increased fuel consumption. Regularly cleaning it at home—according to the specific filter type—helps the engine maintain its power and fuel efficiency.

1. First, identify the filter type: paper (use low-pressure compressed air; do not wash), sponge/foam (wash with mild soap and let dry), or reusable metal/fabric.

2. Ideally, check or clean it every 5,000–10,000 km (do so more frequently if driving on dusty roads); replace it around the 20,000–25,000 km mark or according to the service manual.

3. Signs of a problematic filter: sluggish acceleration, increased fuel consumption, rough or unstable engine operation, or a strong smell of gasoline from the exhaust.

4. Safe procedure: ensure the engine is cool → open the housing → carefully remove the filter → clean according to its type → check its condition → reinstall and ensure the housing is tightly sealed.

5. Record the cleaning date/mileage in OTOVA so you don't miss maintenance reminders; if the filter is pitch-black, torn, or brittle, replace it—do not try to reuse it.

----- Source: https://www.toyota.astra.co.id/corporate-information/news-promo/read/cara-membersihkan-filter-udara-agar-performa-mesin-tetap-optimal (Toyota Astra Motor)