There is no need to use any higher-octane gas in your car than the manufacturer recommends. Using higher-octane gas does nothing but drain your wallet. Be sure to tighten you gas cap after you fill your tank. This will save gas from evaporating into thin air!
These tips are tried and true, and more useful today than ever before. Not only will they help increase your gas mileage, your car will run more efficiently and last longer as well.