Vauxhall VIVARO Owner's Manual page 31

Average consumption
Is displayed, taking into consideration the
distance travelled and the fuel used since
the last reset. The measurement can be
restarted at any time - see page 28.
Instantaneous consumption
The value is displayed after reaching a
speed of 15 mph (25 km/h).
Instruments
Range
The range is calculated from the current
contents of the fuel tank and the average
consumption since the last reset
- see page 28.
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