Mechanics always want to replace air filters but air filter replacement DIY seems too easy to pay someone for. How often do you actually need to change them? I've heard everything from 12,000 to 30,000 miles. What's the real interval for basic car maintenance tips regarding filters?
Air filter replacement DIY interval depends on driving conditions. Normal driving: 15,000-30,000 miles or once a year. Dusty/dirty areas: more often. Easy check: hold filter up to light - if you can't see light through it, replace. Basic car maintenance tips: check filter every oil change. It's a 5-minute job that improves fuel economy and performance.
Cabin air filter is even more important for air quality. Replace every 12-15 months. It's usually behind the glove box. YouTube your car model + cabin air filter" - there's always a tutorial. Some cars have tricky clips, but it's rarely difficult. Helps with allergies and keeps AC smelling fresh.
Don't bother with high performance" air filters unless you're actually modifying your engine. OEM-style paper filters work fine for 99% of drivers. The oiled reusable filters can mess with MAF sensors if over-oiled. For DIY auto maintenance, stick with quality OEM replacement filters - they're cheap and effective.