Fuel Consumption; Fuel - Vauxhall TIGRA Owner's Manual

112 Drivin g and Operation

Fuel consumption

Fuel consump tion is determined und er
specific driv ing cond itions – see page 166.
Special equipment increases the weight of
the v ehicle. As a result, they can increase
fuel consump tion and reduce the specified
max imum speed.
There is increased friction betw een engine
and transm ission parts during the first 600
miles (1000 km ). This increases fuel
consump tion.

Fuel

Fuel for petrol engines
Normal commercial high-quality fuels
with a maxim um ethanol content of 5 % in
accordance with DIN EN 228 are suitable
(for cataly tic c onverter see pa ge 114, for
octane numbers see page 164). The quality
thereof has considerable effect on the
performance, running and service life of the
engine. The additives mixed with the fuel
are extrem ely important. For this reason
you must only refuel with high-quality fuels
conta ining additives.
Fuels with ethanol content greater than 5%
do not comply w ith DI N EN 228 a nd must
not b e used unless the v ehicle ha s b een
specifically develop ed a nd approved for
these fuels.
Fuel with too low an octane number can
cause pinking. Vauxhall cannot be held
lia ble for resulting dama ge.
Petrol with a higher octane number can
always be used.
The ignition tim ing is a utoma tica lly
adjusted according to the grade of fuel
used (octane number) – see page 164.
Use of petrol w ith a n oc ta ne rating of 95
will ensure economica l driving.
Fuel for diesel engi nes
Diesel engines m ust be operated only on
comm ercially av ailable diesel fuel meeting
the specifications of DIN EN 590.
S ince Ja nuary 2004, some oil comp anies
have mix ed their diesel fuel with upto 5%
Bio fuel (FAME = Fatty Acid Methyl Esters)
like RME (Rape-Oil Methyl Ester). This is in
acc orda nce with the current DIN EN 590
and d oes not ha rm the fuel/injection
system. The characteristics of a diesel fuel
mix ed up with 5% Bio fuel (FAME) do not
differ from conventional diesel fuel and do
not influence the vehicle's driveability.
I mporta nt: Diesel fuel m ixed with 5% FAM E
acc ording to DI N EN 590 m ust not be
confused with 100% Bio Diesel, which is not
to be used in Vauxhall eng ines.
The flow and filterability of diesel fuel a re
temperature-dependent.
Diesel fuels w ith improved low temp erature
properties are therefore a vailable on the
ma rk et during the winter months. Make
sure that y ou fill the tank with winter fuel
before the start of the cold weather
season.
Additives can be used with diesel fuels with
winter prop erties that are guaranteed by
the manufa cturer and when using diesel
fuel filters that are heated depending on
the outside temperature.
Diesel fuels must not be diluted with fuels
that are intended for petrol eng ines.