1996 Ford F150 Owner's Manual - Page 318

Comparisons With EPA Fuel Economy Estimates EPA fuel economy figures are obtained from laboratory tests under simulated road conditions and may not reflect the actual conditions you experience or your style of driving. The EPA fuel economy estimate is not a guarantee that you will achieve the fuel economy shown. NOTE: There are no EPA fuel economy estimates for vehicles over 8500 lbs. (3,855 kg) GVW. Improving Fuel Economy Fuel economy is affected by a number of variables which can reduce efficiency. You can improve fuel economy by understanding these variables and minimizing their effect. The following decrease fuel economy: u Lack of regular, scheduled maintenance u Driving with your foot on the brake u Sudden stops u Excessive speed u Extended engine idling u Heavy loads u Underinflated tires u Extended use of the A/C, defroster, rear window defroster and other accessories luggage racks, bug deflectors, etc. u Aftermarket add-ons such as bike, ski or 319