Fuel Consumption - Opel Speedster Operation, Safety, Maintenance Manual

Fuel Consumption,

Fuel, Refuelling
50
Fuel consumption
Optional equipment increases the kerb weight
and in some cases also the permissible gross
vehicle weight. This in turn increases fuel
consumption and reduces the maximum
speed of the vehicle.
When the vehicle is new, there is increased
friction between the engine and transmission
components lasting for several thousand
kilometres/miles. This increases fuel
consumption.
Fuel for petrol engines
Commercially available high-quality fuels are
suitable. Fuel quality has a decisive influence
on the power output, driveability and life of
the engine. The additives contained in the fuel
play an important role in this connection. You
should therefore use only high-quality fuels
containing additives.
Fuel with too low an octane rating can cause
pinking. Opel cannot be held liable for
resultant damage.
Petroi with a higher octane rating can always
be used.
Use unleaded fuel. A dispensing pump for
leaded fuel cannot be inserted in
filler neck.
Use of petrol with an octane rating of 95 will '
ensure economical driving.
the fuel tank