Operation Manual

Fuel
55
PETROL ENGINES
USE ONLY RECOMMENDED FUEL
4 cylinder engines:
Use 90 RON minimum leaded or unleaded fuel
wherever possible.
V8 engines:
Use 91 - 93 leaded or unleaded fuel wherever
possible.
The RON value (octane rating) of petroleum
commonly available at garage forecourts will
vary in different countries. The RON value
quoted is the MINIMUM requirement and
whilst this can be safely exceeded, no
advantage in performance or fuel economy
will be gained by using a higher octane fuel.
If heavy engine knock is detected when using
the recommended octane rated fuel, or if
steady engine knocking is present while
maintaining a steady speed on level roads,
contact your dealer for advice.
NOTE: An occasional,light, engine knock
while acceleratingor climbing hillsis
acceptable.
DIESEL ENGINES
The quality of diesel fuel (Derv) can vary in
different countries and only clean, good
quality fuel should be used. It is important
that the sulphur content of diesel fuel does
not exceed 1%; in Europe all supplies should
be within this limit, but in other parts of the
world, you should check with your supplier.
Ensure the fuel filter element is changed and
the fuel sedimenter drained, at the
recommended service intervals.
If good quality diesel fuel is unavailable and it
is necessary to use poor quality fuel, it may be
necessary to have the fuel filter/sedimenter
drained regularly.
NOTE: The use of paraffin(kerosene) as a
diesel fuel additive is illegalin the UK.
WARNING
On both petrol and diesel engine vehicles, if
the fuel tank is accidentally filled with the
wrong fuel, it is ESSENTIAL that you contact
your dealer BEFORE attempting to start the
engine!