Fuel Consumption, Fuel, Refuelling - Vauxhall Zafira Owner's Manual

144 Drivin g and Operation
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 releasing the accelerator pedal
results in distinct fuel sa ving s w ith no
major loss of speed.
Driv e at no m ore than around three
qua rters of m aximum speed and y ou will
use up to 50% less fuel, without losing a
great deal of time.
Tyre pressure
z Ina dequate tyre pressure, leading to
higher road resista nce, c osts money in
tw o ways: m ore fuel and increased ty re
wear.
z Regular checks (every 14 days) pay off.
Ele ctrical loads
z The power consumption of electrical
equipment increases fuel consum ption.
z Switch off additional consumers (e.g.
air cond itioning 3, heated rear wind ow )
when they are no longer required .
Roof racks, ski-holders
z Due to air resistance, a roof load
can increase fuel consum ption by
approx . 3.5 gal./1000 miles (1 l/100km ).
z Remove them if they are not being used.
Re pair and mainte nance
z Imp roper repairs or a djustment and
maintenance work c an inc rease fuel
consump tion. Do not c arry out work on
the engine y ourself.
Y ou may infringe env ironmenta l laws out
of ignorance b y not disposing of
materials prop erly.
Appropriate parts might not be recy cled.
C ontact w ith some of the m aterials
involved may pose a health hazard.
z We recommend that rep air and
maintenance be entrusted to y our
Vauxhall Authorised R epairer.
Extreme driving conditions
z Driving up steep grad ients, cornering ,
driving on poor roads and winter driving
all increase fuel consum ption.
Fuel consum ption increases drama tica lly
in urban traffic and at w inter
temperatures, especially on short trips
when the engine operating temperature
is not reached.
z Follow the hints giv en abov e to k eep
consump tion to a minimum under such
conditions.
Fuel consumption, fuel,
refuelling
Fuel cons umption
Fuel consum ption is determined under
spec ific driv ing conditions – see pag e 215.
S pecial equipment increases the weight of
the vehicle. As a result, they can increase
fuel consum ption and reduc e the specified
ma ximum speed.
For the first few thousand miles /
kilometres, friction between the engine and
transmission components is higher.
This increases fuel consum ption.
Fuel for pe trol engine s
N orma l commercia l high-quality fuels with
a maximum ethanol content of 5% in
acc orda nce with DIN EN 228 are suitable
(for catalytic conv erter – see page 146,
for octane numbers – see pages 212, 213).
The quality thereof has consid erable effect
on the performance, running and serv ice
life of the engine. The additives mix ed with
the fuel are extremely important. For this
reason y ou m ust only refuel with high-
quality fuels c ontaining additives.
Fuels with ethanol content greater than 5%
do not comp ly with DIN EN 228 and m ust
not be used unless the vehicle has been
spec ifically dev eloped and ap prov ed for
these fuels.
Fuel with too low an octane rating can
cause pinking. N o lia bility will be acc epted
for resulting damage.