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Basic Car Maintenance to Improve Gas Mileage

How often should I change my car's air filter?

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  • David Rizzo

    Dr. Road Map, Dr. Road Map

    www.drroadmap.com  
    (714) 879-8521

    David, DR. ROADMAP, Rizzo burst upon the traffic scene in late 1987 as the first person in Los Angeles to offer alternate routes to motorists who were sick and tired of being stuck in traffic. In 1990 he released to the world the most comprehensive guide ever written of off-freeway commuting in Southern California. Two years later he became the first traffic reporter to offer daily alternate routes in real time over the air on one of the most popular morning radio shows in Los Angeles. Dr. Roadmap continues to provide COMMUTE MANAGEMENT solutions with the 2006 release of his book, Survive the Drive! How to Beat Freeway Traffic in Southern California.

  • How often should I change my car's air filter?

    David Rizzo, fuel economy expert, explains the necessary basic car maintenance to improve gas mileage.

    This expert:83,466 views

    This series: 8,645 views

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  • Transcripts

    Host: How often should I change my car's air filter?

    David Rizzo: I would go by the manufacturer's recommendations, the car manufacturer. It will tell in your owner's manual. Odds are it's usually about once a year, once every 12000 miles. I certainly wouldn't push it any further than one year or 12000 miles. If you are in a dusty area like the desert where there is a lot of particulate matter in the air, sooner and certainly before any smart check change your air filter because you want to pass that test. If your air filter is clogged, this is what happens, the engine control unit adds more gas and naturally that's ruining you gas mileage because you are getting less air, it adds a little more gas to make up for.

    So some big gains can be achieved by changing it on a regular basis, never let it go more than a year.

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