Mercedes-Benz CLK-Class Owner's Manual page 246

Low outside temperatures
To prevent operating problems, diesel with
improved cold flow qualities is available
during the winter months.
You can use winter diesel at temperatures
down to about –20 °C without problems.
To improve flow properties, it is possible to
mix diesel with kerosene and flow improv-
er.
The mixing ratio depends on the type of
diesel and the outside temperature. How-
ever, it should be kept as low as possible.
!
Do not mix diesel with petrol. This would
damage the fuel system.
Add a maximum of 50% kerosene or
flow improver to the diesel.
Only mix diesel with kerosene in a con-
tainer that has been approved for hold-
ing fuels; do not mix them in the fuel
tank.
Put the kerosene into the container
first, then add the diesel.
After a few minutes' driving, the mix-
ture spreads to all parts of the fuel
system.
G
Risk of injury
Please note that as a result of adding kero-
sene, the diesel is more easily ignited.
Operation
Outside Summer
tempera- diesel
ture
–15 °C to 80%
–23 °C
–23 °C to 50%
–30 °C
Outside Winter
tempera- diesel
ture
–25 °C to 80%
–30 °C
–30 °C to 50%
–35 °C
Refuelling
Kero-
sene
20%
50%
Kero-
sene
20%
50%
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