Ford Econoline E-250 Owner's Manual page 22

Instrument Cluster
The DTE function will display LOW FUEL LEVEL when you have
approximately 50 miles (80 km), to empty. Press the SELECT/RESET
stem to clear this warning message. It will return at approximately
25 miles (40 km), 10 miles (16 km) and 0 miles (0 km) to empty.
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 re-initialized to a factory default value if the battery is
disconnected.
XX.X 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)
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 the
SELECT/RESET stem for two seconds in order to reset the function)
after setting the speed control to get accurate highway fuel economy
readings.
MPG (L/km)
This displays instantaneous 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.
22
2012 Econoline (eco)
Owners Guide, 1st Printing
USA (fus)