Fuel For Liquid Gas Operation - Opel 2016 KARL Owner's Manual

128 Driving and operating
Caution
Use of fuel that does not comply to
EN 228 or E DIN 51626-1 or
equivalent can lead to deposits or
engine damage.
Caution
Use of fuel with too low an octane
rating could lead to uncontrolled
combustion and engine damage.

Fuel for liquid gas operation

Liquid gas is known as LPG
(Liquefied Petroleum Gas) or under
its French name GPL (Gaz de Pétrole
Liquéfié). LPG is also known as
Autogas.
LPG consists mainly of propane and
butane. The octane rating is between
105 and 115, depending on the
butane proportion. LPG is stored
liquid at around five to ten bar
pressure.
The boiling point depends on the
pressure and mixing ratio. At ambient
pressure, it is between -42 °C (pure
propane) and -0.5 °C (pure butane).
Caution
The system works at an ambient
temperature of approx. -8 °C to
100 °C.
Full function of the LPG system can
only be guaranteed with liquid gas
which complies with the minimum
requirements of DIN EN 589.
Fuel selector
Pressing LPG switches between
petrol and liquid gas operation as
soon as the required parameters
(coolant temperature, gas
temperature and minimum engine
speed) have been reached. The
requirements are usually fulfilled after
approx. 60 seconds (depending on
exterior temperature) and the first firm
press on the accelerator. The LED
status shows the current operating
mode.
LED off : petrol operation
LED : checking conditions for
flashes fuel transition to liquid
gas operation.
Illuminates if conditions
are fulfilled.
LED illu‐ : liquid gas operation
minates
LED : liquid gas tank is empty
flashes or failure in liquid gas
five system. A message is
times displayed in the Driver
and Information Centre.
extin‐
guishes
If the fuel tank is empty, the engine
will not start.