Saturn 2008 Astra Owner's Manual page 111

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.
Fuel range cannot be reset.
Instantaneous Consumption
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).
The metric display changes
depending on speed:
•
Below 8 mph (13 km/h), displays
in l/h.
•
Above 8 mph (13 km/h), displays
in l/100 km.
This screen cannot be reset.
Distance Travelled
This display shows the current
distance traveled in either miles (mi)
or kilometers (km) since the last
reset.
The measurement can be reset to
zero at any time and restarted.
See "Reset" later in this section.
Instruments and Controls
Average Speed
This display shows the average
speed of the vehicle in miles per
hour (mph) or kilometers per
hour (km/h). This average is
calculated based on the various
vehicle speeds recorded since
the last reset of this value.
The measurement can be reset to
zero at any time and restarted.
See "Reset" later in this section.
Trip Consumption
This display shows the number
of gallons (gal) or liters (l) of
fuel used since the last reset.
The measurement can be reset to
zero at any time and restarted.
See "Reset" later in this section.
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