If you’ve ever asked, when should I replace my car’s air filter?, you’re already thinking like a responsible car owner. This often-overlooked component plays a major role in your engine’s performance and fuel efficiency—and replacing it on time can save you from bigger problems down the road.

What Does the Air Filter Do?

Your car’s air filter prevents dirt, dust, and debris from entering the engine. A clean filter allows for optimal airflow, helping the engine breathe efficiently and burn fuel cleanly. Over time, however, the filter becomes clogged and less effective, which can lead to sluggish performance, higher fuel consumption, and increased emissions.

Recommended Replacement Intervals

Most manufacturers recommend replacing the air filter every 12,000 to 15,000 miles—or roughly once a year for the average driver. That said, if you drive in dusty or polluted environments, you may need to change it more frequently. Always check your owner’s manual for vehicle-specific guidance.

Signs It’s Time for a New Filter

Not sure when to change it? Look out for these symptoms:

Reduced acceleration or power
Decreased fuel economy
Dirty or clogged appearance
Engine misfires or unusual sounds

Replacing the air filter is usually a quick and affordable job, and in many cases, it’s something you can do yourself.

How Rooster Helps You Stay on Track

Wondering again, when should I replace my car’s air filter? With the Rooster app, you can track your car’s service history, receive maintenance reminders, and book professional servicing for up to 50% less than standard garage prices. Whether it’s air filters or MOTs, Rooster keeps your car in top shape for less.

Download the Rooster app today to manage your car’s health, book repairs, and access exclusive savings—all in one place.