2008 Mercury Sable Owner's Manual - Page 112

Driver Controls The DTE function will display FUEL LEVEL LOW and a single tone when you have approximately 50 miles (80 km) to empty. If you RESET this warning message, this display and tone will return within 10 minutes. 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 100 miles traveled by gallons of fuel used (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 0.1 gallon (liter) 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 the RESET control after setting the speed control to get accurate highway fuel economy readings. For more information refer to Fuel Information in the Maintenance and Specifications chapter. Trip elapsed drive time Select this function from the INFO menu to display a timer. To operate the Trip Elapsed Drive Time perform the following: 1. Press and release RESET in order to start the timer. 112 2008 Sable (mgo) Owners Guide (post-2002-fmt) USA (fus)