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How Often Should You Change the Engine Air Filter

How Often Should You Change the Engine Air Filter? 12k Miles

How Often Should You Change the Engine Air Filter? 12k Miles

Replacing the engine air filter is a maintenance item that can often be overlooked, but a dirty air filter can have a negative effect on your car’s performance.

Modern cars will generally have two air filters: one for the cabin and one for the engine. The cabin air filter also needs to be changed periodically, but on a different schedule than the engine air filter. The purpose of the engine air filter is to prevent dust, dirt, and other environmental contaminants from getting into the engine. Over time, the air filter becomes dirty and clogged and will need to be replaced.

How Often Should You Change The Engine Air Filter. How Often To Replace Engine Air Filter.

How often to replace engine air filter

How often to replace engine air filter. Maintenance schedules for various makes of vehicles differ on how often the air filter should be replace. On most Chevrolet engines, for example, the recommended change interval is every 45,000 miles, but Ford says it should be done every 30,000 miles on many of its engines. Hyundai also says every 30,000 miles but shortens it to 15,000 for “severe” driving conditions, which include heavy traffic in hot weather and frequent driving on unpaved roads or dusty conditions. Those rules will apply to other makes as well. If you drive in those conditions, often the air filter will need to be replaced earlier.

You might be able to tell when a filter needs replacing just by looking at it. If you find black areas on the section through which outside air enters, then it may be time for a swap. The good news is, air filters on most engines are fairly easy to access and you can check the location in your owner’s manual if you need help.

If you can’t tell by looking, but it’s been more than three years or 30,000 miles, you probably should get a new one (especially if you can save money by doing it yourself). However, you should be leery if every time you get an oil change the repair shop says you also need a new air filter. We would expect drivers in most cases can go more than a year, at least, and probably more than two years between air filter changes depending on conditions and mileage.

A clogged air filter won’t significantly affect fuel economy, according to a 2009 study conducted for the U.S. Department of Energy, but it can hurt acceleration by 6 to 11 percent. Acceleration is harder to measure than fuel economy, so you may not notice a performance loss since the decline will be gradual. For that reason, it’s a good idea to periodically visually check the engine air filter to make sure it’s clean.

Frequently Ask Questions about how often to replace engine air filter

When should I change my engine air filter?

As a rule of thumb, most average drivers should be able to go one to two years before needing a new air filter. A word of warning: Any mechanic who recommends a new engine air filter every time you bring your vehicle in for an oil change (i.e., every 3,000-5,000 miles) is a red flag. Source

What happens if you don’t change your car engine air filter?

The air filter is there to prevent dirt and debris from entering the engine and causing major issues. Without it, or without a properly functioning filter, your vehicle will experience loss of power, reduced fuel economy, and even engine failure. Source

How often should you get your oil and air filter changed?

30,000 miles

First, consult the owner’s manual to see if it provides any indication. As a rule of thumb, 30,000 miles is about how far you should drive before replacing the filter. It is often easiest to simply get the air filter changed every time you take the vehicle in for a routine oil change, tire rotation, etc. Source

How often to replace engine air filter?

You should change the air filters at least once a year or every 12,000-15,000 miles, whichever comes first. If you drive in dusty/dirty conditions, you may be required to change your filter more often. Some filters are marked with a service life indicator that changes color when it’s time to be replaced. Source

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