Jaguar XJ - Manual (Page 145)

R
(FM8) SEMCON JLR OWNER GUIDE VER 1.00 EURO
LANGUAGE: english-en; MARQUE: jaguar; MODEL: XJ
Fuel and refuelling
145
Fuel and refuelling SAFETY PRECAUTIONS
Avoid exposing the fuel gasses to any
potential sources of ignition as the
resulting fire and explosion may
cause serious injuries and/or death.
Switch off the engine when refuelling,
as it is both a source of extreme
temperatures, and electrical sparks.
Switch off any personal electronic
devices such as mobile phones, or
music players.
PETROL ENGINED VEHICLES
Do not use leaded fuels, lead
substitutes or fuel additives.
Fuel system cleaning agents should not
be used, unless approved by Jaguar.
OCTANE RATING
The minimum octane rating for fuel used is 95
RON (Research Octane Number). The vehicle
will run on lower ratings, but it may cause
pronounced engine knock or pinking. If the
pinking is severe it can cause damage to the
engine, fuel and emission control systems.
Note: Occasional, light, engine knock
experienced while accelerating or climbing hills
is acceptable.
Super Green Plus 98 RON unleaded fuel (where
available) may be used as an alternative to the
standard 95 RON unleaded fuel.
Some countries have only 91 RON fuel
available. Vehicles sold in these countries are
specially calibrated to use this fuel.
ETHANOL
This vehicle is not suitable for use with
fuels containing more than 10%
ethanol.
Do not use E85 fuels (85% ethanol
content). Equipment necessary for the
use of fuels containing more than 10%
ethanol is not fitted to this vehicle. If
E85 fuels are used, serious engine and
fuel system damage will occur.
Fuels containing up to 10% ethanol (grain
alcohol) may be used. Ensure that the fuel has
octane ratings no lower than those
recommended for unleaded fuel. Most drivers
will not notice any operating difference with
fuel containing ethanol. If a difference is
detected, the use of conventional unleaded fuel
should be resumed.
METHANOL
Wherever possible avoid using fuel
containing methanol.
Some fuels contain methanol (Methyl or wood
alcohol). If you use fuels containing methanol
the fuels must also contain co-solvents and
corrosion inhibitors for methanol. Also, do not
use fuels which contain more than 10%
methanol even if they contain co-solvents and
corrosion inhibitors. Fuel system damage or
vehicle performance problems resulting from
the use of such fuels is not the responsibility of
Jaguar, and may not be covered under the
warranty.
METHYL TERTIARY BUTYL ETHER
(MTBE)
Unleaded fuel containing an oxygenate known
as MTBE can be used provided that the ratio of
MTBE to conventional fuel does not exceed
15%. MTBE is an Ether based compound
derived from Petroleum, which has been
specified by several refiners as the substance
to enhance the Octane rating of fuel.