Saving Fuel - Opel Speedster Operation, Safety, Maintenance Manual

Saving Fuel

Energy-conscious driving
I High fuel consumption is often a result of
failing to drive in an energyconscious
manner.
I You should therefore drive with energy
mind - more miles with less fuel".
Fuel consumption depends to a great
extent on your own personal driving style.
The following hints will help you to achieve
fuel consumption as close as possible to
the specified levels.
Check your vehicle's fuel consumption
every time you fill up. In this way you will be
able at an early stage to detect any
irregularities causing increased
consumption.
46
Warming up
I Driving at full throttle or idling while the
engine is still cold increases engine wear
and fuel consumption.
I Drive away immediately after starting.
Engine speed should be moderate until the
engine has reached operating
Uniform speed
I Hectic driving significantly increases fuel
consumption.
I Do not accelerate and brake unnecessarily.
Drive as often as possible in top gear.
In many cases you can shift into fourth gear
at speeds as low as 50 km/h (30 mph) in
urban traffic.
In fourth gear fuel consumption in the
50 to 80 km/h (30 to 50 mph) range is
around 25 % lower than in third gear.
in
in the 70 to 90 km/h (45 to 55 mph) range,
fuel consumption in fifth gear is roughly
15 % lower than in fourth gear.
Select the next higher gear as soon as
possible, and only change down when the
engine is no longer running perfectly
smoothly.
Idling
I The engine also consumes fuel when idling.
I If you have to wait for more than one
minute, it is worthwhile switching off the .
engine. Five minutes of idling corresponds
to approx. one kilometre (0.6 miles) of
temperature. driving.
Overrun
I The fuel supply is automatically shut off
during overrun, e.g. when the vehicle is
being driven down long gradients or during
braking.
I To enable the overrun cut-off to come into
action and save fuel, do not accelerate or
declutch during
Correct gear selection
I High revs increase engine wear and fuel
consumption.
I Do not race your engine. Driving too fast in
individual gears or drive ranges increases
engine wear and fuel consumption.
Making use of the tachometer helps to save
fuel: if possible, drive in each gear in the
low engine speed range (between approx.
2000 and 3000 rpm) and maintain a steady
vehicle speed.
overrun.