2006 Lincoln LS Owner's Manual - Page 127

Driver Controls Fuel Econ Avg Select this function from the FUEL control to display your average fuel economy in miles/gallon or liters/ 100 km. If you calculate your average fuel economy by dividing gallons of fuel used by 100 miles traveled (kilometers traveled by liters used), your figure may be different than displayed for the following reasons: • your vehicle was not perfectly level during fill-up • differences in the automatic shut-off points on the fuel pumps at service stations • variations in top-off procedure from one fill-up to another • rounding of the displayed values to the nearest gallon (liter) Checking your highway fuel economy using the electronic message center display The following procedure will allow you to accurately monitor your actual highway fuel economy. Since this procedure requires the vehicle speed control system to be set to highway speeds, it must be run only on suitable roadways where long distance speed control can be safely maintained. You may notice gradual improvement in fuel economy over the course of your vehicle's break-in period (approximately 1,000 miles [1,600 kilometers]). 1. Press the FUEL control to display miles to empty. Press again to display average fuel economy. 2. Set the speed control. Refer to Speed control in this chapter. 3. Press the RESET control to clear the system memory. • Actual highway fuel economy is now displayed. This current average measure will change as the speed control system changes the engine speed to maintain a constant vehicle speed. This is most noticeable in hilly environments. 4. Drive the vehicle at least 5 miles (8 km) with the speed control system engaged to display a stabilized average. 5. Record the highway fuel economy for future reference. 127 2006 Lincoln LS (dew) Owners Guide (post-2002-fmt) USA (fus)