OPM 250 en-GB 84
© Scania CV AB 2022, Sweden
Quality requirements for fuel
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.
DMX and DMA diesel
Use of DMX and DMA diesel is not permitted
for engines with SCR systems.
DMX and DMA diesels normally cause in-
creased wear on the injection system. As a result
of the high sulphur content in these types of die-
sel, the engine oil is also affected. The engine oil
must have as high a Total Base Number (TBN)
as possible.
For engines running on DMX and DMA diesels,
the engine oil must have a TBN of at least 12.
When the engine is taken into operation the en-
gine oil must be analysed every 50 hours to de-
termine the correct oil change interval. The oil
analysis must be carried out according to the in-
structions in the Oil analysis
section in this Oper-
ator's manual.
Bear in mind that the emission limit for the cur-
rent engine type may limit the maximum permit-
ted sulphur content of the diesel.
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