Diesel - Volvo XC90 Owner's Manual

09 Maintenance and service

Diesel

09
Fuel system
Diesel engines are sensitive to contaminants.
Only use diesel fuel from a well-known oil com-
panies. Never use diesel of dubious quality,
see page 273. Special diesel fuel designed for
low temperatures around freezing point is also
available from the major oil companies. This
fuel is less viscous at low temperatures and
reduces the risk of paraffin precipitate.
The risk of condensation in the fuel tank is
reduced if the tank is kept well filled. When
refuelling, check that the area around the fuel
filler pipe is clean. Avoid spilling fuel onto the
paintwork. Wash off any spillage with deter-
gent and water.
IMPORTANT
Only ever use fuel that fulfils the European
diesel standard, see page 273.
1 Diesel fuel may contain a certain amount of RME, but further amounts must not be added.
198
IMPORTANT
Diesel type fuels which must not be used:
special additives, Marine Diesel Fuel, fuel
1
oil, RME (Rape Methyl Ester) and vegeta-
ble oil. These fuels do not fulfil the require-
ments in accordance with Volvo recommen-
dations and generate increased wear and
engine damage that is not covered by the
Volvo warranty.
IMPORTANT
For model year 2006 or later the sulphur
content must be a maximum of 50 ppm.
Empty tank
No special procedures are required if the tank
runs dry. The fuel system is bled automatically
if the ignition switch is kept in position
approx. 60 seconds before the start attempt.
Draining condensation from the fuel
filter
The fuel filter separates condensation from the
fuel. Condensation can disrupt engine opera-
tion.
The fuel filter must be drained at the intervals
specified in the Service and Warranty Booklet
or if you suspect that the car has been filled
with contaminated fuel.
IMPORTANT
Certain special additives remove the water
separation in the fuel filter.
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