Fuel Saving Tips
Contrary to popular belief, especially what you'll hear from the companies and stores trying to sell filters (hint hint), changing your air filter will NOT improve your mpg, nor will it extend the life of your engine (BTW, dirty filters filter better). It will remove a slight restriction to peak horsepower but not save gas, so feel free to put that money elsewhere.
posted by Hexadecimus on June 29, 2015
this tip works for 32% of voting Fuelly members.