Chevrolet 2007 Monte Carlo Owner's Manual page 189

Fuel Range
Press the trip/fuel button until FUEL RANGE
displays. This display shows the approximate
number of remaining miles (mi) or kilometers (km)
the vehicle can be driven without refueling.
The fuel range estimate is based on an average of
the vehicle's fuel economy over recent driving
history and the amount of fuel remaining in the fuel
tank. This estimate will change if driving conditions
change. For example, if driving in traffic and making
frequent stops, this display may read one number,
but if the vehicle is driven on a freeway, the number
may change even though the same amount of fuel
is in the fuel tank. This is because different driving
conditions produce different fuel economies.
Generally, freeway driving produces better fuel
economy than city driving.
If your vehicle is low on fuel, the FUEL LEVEL
LOW message will be displayed. See "FUEL
LEVEL LOW" under DIC Warnings and Messages
on page 195 for more information.
Average Economy
Press the trip/fuel button until AVG ECONOMY
displays. This display shows the approximate
average miles per gallon (mpg) or liters per
100 kilometers (L/100 km). This number is
calculated based on the number of mpg (L/100 km)
recorded since the last time this menu item was
reset. To reset AVG ECONOMY, press and hold
the set/reset button. The display will return to zero.
Instantaneous Economy and Active Fuel
Management™ Indicator
Press the trip/fuel button until INST ECONOMY
displays. If your vehicle has the Active Fuel
Management™ feature, INST ECONOMY
8CYL MODE will display on vehicles with a
V8 engine or INST ECONOMY 6CYL MODE will
display on vehicles with a V6 engine. This display
shows the current fuel economy at a particular
moment and will change frequently as driving
conditions change. This display shows the
instantaneous fuel economy in miles per gallon
(mpg) or liters per 100 kilometers (L/100 km).
Unlike average economy, this screen cannot
be reset.
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