Diesel Fuels - Mercedes-Benz OM 904 LA Operating Instructions Manual

Diesel fuels

Only use commercially available diesel fu-
els (EN 590). The use of other fuels is sub-
ject to official approval from
DaimlerChrysler.
Fuel additives are not necessary. The use
of fuel additives may limit your warranty
entitlement.
If diesel fuels with a sulphur content of
more than 0.3% by weight are used, the en-
gine oil must be changed at shorter inter-
vals. Observe the information in the
Maintenance Booklet.
Filling the vehicle's fuel tank from drums or
canisters may introduce impurities into the
fuel system. This can lead to fuel system
malfunctions. The fuel must therefore be
filtered when filling the tank.
The fuel must not be mixed with water un-
der any circumstances.
Diesel fuels in extremely cold weather
At low outside temperatures, paraffin sep-
aration may affect the flow characteristics
of diesel fuel.
To prevent operating problems (e.g. as a
result of blocked filters), diesel fuels with
improved cold flow properties are available
on the market in the winter months. Devia-
tions are possible in individual countries
and in the transition between the cold and
warm seasons. In Germany, special cold-
resistant winter-grade diesel fuels are
available that ensure reliable operation
down to approximately –20 °C. Winter-
grade diesel fuel can normally be used
without risk of malfunctions at the outside
temperatures to be expected in the coun-
try of sale.
Service products
If summer diesel fuel or less cold-resistant
winter diesel fuel is used, only add a specif-
ic quantity of flow improver or kerosene
suitable for the outside temperatures.
Risk of explosion
Adding petrol reduces the flash point for the
diesel fuel and increases the risk of fire and
explosion.
For this reason, do not mix petrol with
the diesel fuel under any circumstances.
For this reason, you must avoid fire, na-
ked flames and sparks, and refrain from
smoking when handling these service
products.
Observe the relevant safety regulations.
Operation
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