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Why You Should Replace Your Car’s Air Filter

Your car’s air filter is one of the most affordable parts to replace—and yet it plays a big role in engine performance, fuel economy and longevity. Dirty air filters restrict airflow, making the engine work harder, increasing fuel consumption and accelerating wear.

October 30, 2025
1 min read

Daniel Lee

Workflow Strategist

Why You Should Replace Your Car’s Air Filter

Your car’s air filter is one of the most affordable parts to replace - and yet it plays a big role in engine performance, fuel economy, and longevity. Dirty air filters restrict airflow, making the engine work harder, increasing fuel consumption, and accelerating wear.

When to replace it

Every 12,000–15,000 miles (or according to your owner’s manual).

Replace more often if you drive on dusty roads, tow frequently, or live in an urban area with heavy pollution.

How to pick the right one

Use the vehicle selector on the marketplace: enter year, make, model, and engine size to find compatible filters.

Choose between standard paper filters (economical) or high-flow performance filters (better airflow, reusable in some cases).

Check for OEM or cross-reference numbers to ensure correct fit and quality.

Look for good packaging: seal intact, pleats even, no damage.

Add related items

While you’re replacing the air filter, consider replacing the cabin filter or cleaning the MAF sensor.

Benefits of timely replacement:

  • Smoother acceleration and quicker throttle response
  • Slight improvement in fuel economy
  • Prolongs engine life and helps keep emissions in check
  • Keeps the interior cleaner by reducing dust entering the HVAC system

Quick DIY tip

Pop the hood, open the air-filter box, remove the old filter, vacuum out any debris, install the new filter in the correct orientation, and close the box.

Takes less than 10 minutes for many cars.

Bottom line

Don’t overlook the air filter—it’s a small part with a solid return on investment. Pick the right one for your car, replace it when needed, and enjoy better engine health today.