FORD 2010 Expedition v.2 - Manual (Page 21)

Distance to empty 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 re-initialized to a factory default value if
the battery is disconnected.
AVG MPG (L/100km)
Average fuel economy displays 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 the SELECT/RESET stem (press and hold for
two seconds in order to reset the function) after setting the speed
control to get accurate highway fuel economy readings.
XX°F / XX°C
The outside air temperature is shown together with the compass heading
in the bottom row of the message center display. Refer to Units in this
section for information on selecting °F or °C.
COMPASS DISPLAY (if equipped)
The compass heading is displayed as one of N, NE, E, SE, S, SW, W and
NW in the message center display.
The compass reading may be affected when you drive near large
buildings, bridges, power lines and powerful broadcast antenna. Magnetic
or metallic objects placed in, on or near the vehicle may also affect
compass accuracy.
Instrument Cluster
21
2010 Expedition (exd)
Owners Guide, 2nd Printing
USA (fus)