Engine Air Filter: lifespan, maintenance and replacement

Typical lifespan: 15,000–30,000 miles.

Maintenance schedule

• Visual inspection — Every 6 months
• Replace air filter — Every 15,000–30,000 miles

Signs it needs replacing

• Decreased fuel efficiency
• Engine misfires or rough idle
• Filter appears visibly dirty or clogged
• Unusual engine sounds
• Reduced acceleration

Tips

Driving in dusty conditions means more frequent replacement. Most are easy DIY swaps.