Vauxhall VECTRA Owner's Manual page 199

Overrun
z The fuel supply is automatically shut off
during ov errun, e. g. when the vehicle is
being driven down long gradients or
when braking – see page 195.
z To enable the overrun cut-off to take
effect a nd sav e fuel, during overrun do
not ac celera te and do not declutch.
Corre ct gear selection
z High revs increase engine w ear and fuel
consumption.
z Do not race your engine. Avoid d riv ing at
high engine speeds.
Driv ing with an ey e on the tachom eter
saves fuel. I f possib le, drive a t low rev s in
each gear and a t a consta nt speed.
Driv e in top g ear as m uch a s p ossible,
shift up as soon as possib le and do not
shift down until the engine is no longer
running truly .
High speed
z The faster the speed, the higher the
consumption and the noise level. Driving
at full throttle uses up a g reat deal of fuel
and generates ex cessive noise a nd hig h
emission levels.
z Slightly relea sing the accelerator ped al
results in distinct fuel savings with no
major loss of speed.
Drive at no more tha n around three
quarters of max imum speed and you will
use up to 50 % less fuel, without losing a
great deal of time.
Tyre inflation pres sure
z Inadequate ty re p ressure, leading to
higher road resistance, costs m oney in
two wa ys: for more fuel and increased
tyre wear.
z Regular checks (every 14 d ays) pay off.
Electrical loads
z The power consum ption of electrical
equip ment increa ses fuel consumption.
z Sw itch off additional consumers (e.g. air
conditioning 3, hea ted rear window)
when they are no longer required.
Roof racks, ski-holders
z Roof loads can increase fuel
consump tion by approx. 3.5 gal./
1000 miles (1l/100 km) due to air
resistanc e.
z Remove them if they are not being used.
Repair and maintenance
z Improper repairs or adjustm ent and
maintenance work can increase fuel
consumption. Do not carry out w ork on
the eng ine yourself.
You may out of ignorance infringe
environmental law s b y not disposing of
materials properly.
Appropriate parts m ight not be rec ycled .
Contact with some of the materia ls
inv olv ed may p ose a hea lth haz ard.
z We recom mend that repair and
maintenance be entrusted to a Vauxhall
Authorised Repairer.
Extre me driving conditions
z Driv ing up steep gradients, cornering,
driving on poor roads and winter driving
all increase fuel consumption.
Fuel consumption increa ses dramatically
in urba n tra ffic a nd at winter
temperatures, especially on short trip s
when the engine operating tempera ture
is not reached.
z Follow the hints given above to keep
consumption to a m inimum under suc h
cond itions.
197