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The engine air filter in your 2008 Mercury Mariner cleans the air that enters your engine. You should change the filter on your Mariner at least once a year or every 20,000 miles, whichever comes first. If you drive in dusty or sandy conditions, you should change your filter more frequently. A dirty air filter will cause your Mariner to lose 1 - 3 mpg, depending on your driving, you can save 70 - 100 gallons of gas per year simply by changing your filter regularly. The video above, shows you where the engine air filter is located in your Mariner and how to change it!
In addition to improving the fuel economy of your Mariner, regularly replacing your air filter will put less strain on your engine. These filters are fairly inexpensive, so check out our parts page for great deals and coupons on a new one (tip: buy several, when you go to check the filter on your Mariner, you can easily swap it for a new one if it is dirty).
Unlike a waist belt, these usually become looser as they age! Learn how to check it here2008 Mercury Mariner 3.0L V6
Small bulbs that burn out regularly - did you know you can replace these with LED lights?2008 Mercury Mariner 3.0L V6
On many cars, the high beam bulb runs at reduced power during the day - check 'em and change 'em!2008 Mercury Mariner 3.0L V6
DRLs are on more than your headlights. They burn out faster and should be replaced regularly2008 Mercury Mariner 3.0L V6
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2008 Mercury Mariner 3.0L V6
Don't be caught in the fog with burnt out fog light bulbs2008 Mercury Mariner 3.0L V6