2004 Mercury Grand Marquis Owner Guide 3rd Printing - Page 69

Driver Controls The message center will remain in RESET E/M SELECT the DTE function until the SELECT control is pressed to change functions. DTE is calculated using a running average fuel economy, which is based on your recent driving history of 800 km (500 miles). 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. If "CO" or "CS" is displayed, there is a problem with the fuel indication system and you should contact your dealer for service as soon as possible. AVG FUEL ECONOMY (average fuel economy) Select this function to display your DISTANCE AVG FUEL TO EMPTY ECONOMY average fuel economy in liters/ TRIP TRIP AVG 100 km or miles/gallon. A B SPEED If you calculate your average fuel economy by dividing miles traveled by gallons 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 liter (gallons) Press the RESET control while AVG RESET E/M SELECT ECON is displayed to reset the function. The average displayed is the average since the last reset. 69 2004 Grand Marquis (grn) Owners Guide (post-2002-fmt) USA English (fus)