FORD 2008 F-550 v.4 - Manual (Page 131)

If you calculate your average fuel economy by dividing miles traveled
since last fill-up by gallons of fuel used (multiply liters used by 100, then
divide by 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)
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.
Drive timer (Elapsed travel timer)
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.
2. Press and release RESET to pause the timer.
3. Press and hold RESET for 2 seconds in order to reset the timer.
Setup menu
Press this control for the following
displays:
• System Check
• Units (English/Metric)
• Autolamp Timer Presets (if
equipped)
• Autolock On/Off (if equipped)
• Compass calibration
• Language
RESET
SETUP
INFO
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Driver Controls
131