OPM 200 en-GB 106
© Scania CV AB 2020, Sweden
Quality requirements for fuel
Temperature dependence of diesel
Mixing kerosene or other paraffins with the die-
sel is prohibited. The injectors may be damaged.
It is not permissible to mix petrol with diesel. In
the long term petrol can cause wear in the injec-
tors and engine.
At temperatures lower than those specified for
the diesel, paraffin wax may precipitate from the
diesel and block filters and pipes. The engine can
then lose power or stop.
The diesel is adapted for use in the specific cli-
mate of each country. If an engine is to be oper-
ated in a temperature zone with a temperature
lower than normal, first identify the temperature
properties of that particular diesel.
Biodiesel (FAME)
Use of biodiesel
For engines with SCR systems, a maximum of
10% mixture of biodiesel should be used.
Scania uses the term biodiesel to refer to a re-
newable diesel made from greases or oils and
methanol. The biodiesel should conform to the
requirements of European standard EN 14214 or
Brazilian standard ANP-45. For biodiesel in ac-
cordance with EN 14214 or ANP-45, the generic
term FAME is frequently used.
Normal diesel in accordance with EN 590 can
contain up to 7% biodiesel from the diesel sup-
plier. There are grades of diesel that comply with
EN 590 but contain a higher mixture of biodies-
el.
Scania approves up to a 10% mixture of biodies-
el for all engines.
Storage of biodiesel
Biodiesel must not be stored for more than 6
months.
Biodiesel has a maximum storage life of
6 months from the date of production to the ex-
piry date. Biodiesel is affected by light, temper-
ature, water, etc. during storage, which affects
the characteristics and durability of the biodiesel.
Biodiesel also has lower stability against oxida-
tion than diesel. This can result in a thickening of
the biodiesel and blocking of parts of the fuel
system, e.g. the fuel filter. Bacterial growth can
occur when biodiesel is stored in a tank in unfa-
vourable conditions. Avoid storage in barrels or
auxiliary tanks, except when fuel turnover rates
are high. Check tank cleanliness whenever refu-
elling takes place.
If the engine has been refuelled with biodiesel,
and is stationary for a long period, condensation
water can form in the fuel tank resulting in bac-
terial growth.
See also the section Preservative fuel
.
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