fuel additives OPEL GT 2012 Owners Manual

1 1 4 D r iv in g an d o p e ra t io n
Fuels, refu elling
Fuel c onsum ption
Fuel consump tion is determined und er
s pecific driv ing cond itions – s ee page 1 77 .
Special equipment increases the weight of
t h e v eh i cl e. A s a r es u l t , t h ey ca n i n cr ea s e
fuel consump tion and reduce the specified
max imum s pee d.
F or the first few thousa nd kilome tres/m ile s,
friction b etwe en the engine and
transm ission com pone nts is higher.
This increases fuel consump tion.
Fuel for petrol engines
Normal comme rc ia l hig h-q uality fue ls
with a m aximum ethanol conte nt of 5% in
accordance with DIN EN 22 8 are suitable
(Cataly tic converte r - s ee page 1 16 .
O ctane numbe rs - se e page 17 5 ). The
quality thereof has considerable effect on
performance, running and service life of
the e ngine. The additive s mixe d with the
fuel are extremely im portant. For this
r ea so n yo u mu s t o n ly r e fu e l with h igh-
quality fuels containing additives.Fuels with e thanol content of gre ater than
5% d o not com ply with DIN EN 228 and
must not be used unless the v ehicle has
bee n s pe cifica lly dev eloped a nd ap prov ed
for these fuels.
Fuel with too low an octane number can
cause pinking. Opel cannot b e held liable
for re sulting dam age.
Petrol with a higher octane number can
always be use d.
The ignition tim ing adjusts automatically
t o t h e g r a de o f f u el us e d ( o ct a n e n um ber
)– se e p age 17 5 .
Use of pe trol with an octane rating of 95 or
highe r will e ns ure e conom ical driving.
Fue l fille r c ap
If re placing the fuel fille r c ap, be sure to us e
the original fue l fille r cap for your mode l, to
ensure full functionality.Re fue lling
9 Wa r nin g
Care must be ta ken when hand ling fuel.
Before re fuelling, s witch off the e ng ine
and where applicab le any auxiliary
he ating with combus tion cha mbers .
Switch off mobile phones.