Ford 2009 Expedition Owner's Manual page 143

Driver Controls
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 (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.
Instantaneous fuel economy
Press INFO until the menu displays
"MPG". This will display your fuel
economy as a bar graph ranging
from poor economy to excellent
economy.
Your vehicle must be moving to calculate instantaneous fuel economy.
When your vehicle is not moving, this function shows one or no bars
illuminated. Instantaneous fuel economy cannot be reset.
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.
143
2009 Expedition (exd)
Owners Guide, 1st Printing
USA (fus)