Mercedes-Benz OM 904 LA Operating Instructions Manual page 63

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Operation
Service products
!
There is a risk of serious engine dam-
age if petrol is mixed with diesel.
For this reason, do not mix petrol with
the diesel fuel under any circumstanc-
es.
Mix the additive with the diesel fuel in good
time, before the flow properties of the die-
4
sel are affected by paraffin separation.
Malfunctions caused by paraffin separa-
tion can only be remedied by warming up
the entire fuel system.
Do not mix additives with special cold-re-
sistant winter diesel fuels as the cold-flow
properties of the fuel could deteriorate.
Flow improvers
The effectiveness of flow improvers cannot
be guaranteed with all fuels. Observe the
manufacturer's recommendations. Infor-
mation about approved flow improvers is
available from any Mercedes-Benz Service
Centre.
60
Kerosene
Add only as much as is required for the
prevailing outside temperatures. The addi-
tion of 5% by volume of kerosene improves
the cold-resistance of diesel fuel by ap-
proximately 1 °C. Do not exceed the max-
imum mixing ratio of 50% kerosene.
!
There is a risk of engine damage if ker-
osene is permanently mixed with die-
sel.
It is therefore not permissible to mix
kerosene with diesel on a permanent
basis.
Run the engine for a while to ensure that
the additive reaches all parts of the fuel
system.
Risk of explosion
Adding kerosene reduces the flash point of
the fuel, increasing the risk of fire and explo-
sion.
For this reason, avoid fire and naked
flames and refrain from smoking when
handling these service products.
Only mix kerosene with diesel in the fuel
tank.
First add the kerosene and then the
diesel fuel.
Observe the relevant safety regulations.
G

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