Fuel; Brake Assist; Fuel For Petrol Engines; Fuel For Diesel Engines - Opel Combo 2011 Manual

94 Driving and operating

Brake assist

If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the
brake pedal for as long as full braking
is required. Maximum brake force is
automatically reduced when the
brake pedal is released.

Fuel

Fuel for petrol engines

Only use unleaded fuel that complies
with DIN EN 228.
Equivalent standardised fuels with an
ethanol content of max. 10 % by
volume may be used. In this case only
use fuel that complies with
DIN 51625.
Use fuel with the recommended
octane rating 3 141. Use of fuel with
too low an octane rating can reduce
engine power and torque and slightly
increases fuel consumption.
Caution
Use of fuel with too low an octane
rating could lead to uncontrolled
combustion and engine damage.

Fuel for diesel engines

Only use diesel fuel that complies
with DIN EN 590. The fuel must have
low sulphur content (max. 50 ppm).
Equivalent standardised fuels with
a biodiesel (= FAME according to
EN14214) content of max. 7 % by
volume (like DIN 51628 or equivalent
standards) may be used.
Do not use marine diesel oils, heating
oils or entirely or partially plant-based
diesel fuels, such as rape seed oil or
biodiesel, Aquazole and similar
diesel-water emulsions. Diesel fuels
must not be diluted with fuels for
petrol engines.
The flow and filterability of diesel fuel
are temperature-dependent. When
temperatures are low, refuel with
diesel fuel with guaranteed winter
properties.
Fuel for natural gas
operation
Use natural gas with a methane
content of approx. 78 - 99 %. L-gas
(low) has approx. 78 - 87 % and H-gas
(high) has approx. 87 - 99 %. Biogas
with the same methane content can
also be used if it has been chemically
prepared and desulphurised.
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