Opel Automobile Owner's Manual page 95

(high) has approx. 87 - 99 %. Biogas
with the same methane content can
also be used if it has been chemically
prepared and desulphurised.
Only use natural gas or biogas that
complies with DIN 51624.
Liquid gas or LPG must not be used.
Refuelling
9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers (identified
by sticker on fuel filler flap). Switch
off any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by
a workshop.
Caution
In case of misfuelling, do not
switch on ignition.
Driving and operating
Fuel filler flap is located at right rear
side of vehicle.
With a central locking system with
remote control, the tank flap is
unlocked at the same time as the
doors.
Open tank flap.
Unlock the fuel filler cap with the
ignition key, unscrew and remove.
The fuel filler cap can be retained in
the bracket on the fuel filler flap.
95