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The engine air filter in your 2004 Buick Century cleans the air that enters your engine. You should change the filter on your Century 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 Century 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 Century and how to change it!
In addition to improving the fuel economy of your Century, 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 Century, you can easily swap it for a new one if it is dirty).
DRLs are on more than your headlights. They burn out faster and should be replaced regularly2004 Buick Century Custom 3.1L V6
Don't be the guy with your third brake light burnt out2004 Buick Century Custom 3.1L V6
See how to seal up minor power steering fluid leaks2004 Buick Century Custom 3.1L V6
Want an easy way to save $500? Rotate your tires at least three times per year2004 Buick Century Custom 3.1L V6
White light when you back up - yup, they burn out and you can replace them with bright LEDs2004 Buick Century Custom 3.1L V6
Learning how to jump your car before you need to is an excellent idea2004 Buick Century Custom 3.1L V6