2010 Ford Fusion Owner Guide 4th Printing - Page 20

Instrument Cluster DTE is calculated using a running average fuel economy, which is based on your recent driving history of 500 miles (800 km). This value is not the same as the average fuel economy display. The running average fuel economy is reinitialized to a factory default value if the battery is disconnected. Average fuel economy (AFE) Select this function from the INFO menu to display your average fuel economy in miles/gallon or liters/100 km. If you calculate your average fuel economy by dividing distance traveled by gallons of fuel used (liters of fuel used by 100 kilometers traveled), 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 0.1 gallon (liter) To determine your average highway fuel economy, do the following: 1. Drive the vehicle at least 5 miles (8 km) with the speed control system engaged to display a stabilized average. 2. Record the highway fuel economy for future reference. It is important to press RESET (press and hold RESET for two seconds in order to reset the function) after setting the speed control to get accurate highway fuel economy readings. For more information refer to Essentials of good fuel economy in the Maintenance and Specifications chapter. Instantaneous fuel economy (IFE) Select this function from the INFO menu to display your instantaneous fuel economy. This will display your fuel economy as a bar graph ranging poor economy to from excellent economy. 20 2010 Fusion (fsn) Owners Guide, 4th Printing USA (fus)