Diesel F U E Ls - Mercedes-Benz 300TD 1980 Owner's Manual

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Diesel Fuels
Use only commercially available
vehicular diesel fuels No. 2 or No. 1
(ASTM D 975 No. 2-D or No. 1-D).
Change engine oil in compliance with
section " Engine Oil Change and Oil
Filter Service" if diesel fuels are used
whose sulphur content exceeds 0.5 %
by weight. Marine diesel fuel, heating
oil or the like must not be used.
At very low temperatures the fluidity
of No. 2-D diesel fuel may become
insufficient due to paraffin separation.
To avoid malfunctions, No. 2-D diesel
fuel of a lowered cloud point are
marketed during the cold season.
If winter diesel fuel is used, there will
hardly be any malfunctions at outside
temperatures reaching as low as
-16° C /+30 F.
Varying with the temperature, add a
certain quantity of kerosene, if only
No. 2-D summer diesel fuels or less
cold resistant winter diesel fuels are
available or if temperatures drop
below -16° C/+3° F.
If regular gasoline does have to be
added, its proportion should not
exceed 30 %. Premium fuels are not
to be used.
Engine power may drop according to
the proportion of supplementary fuel
For this reason, keep percentage of
fuel added to the minimum necessi­
tated by the ambient temperature.
Even at ambient temperatures of less
than -22° C /-8 ° F the proportion of
supplementary fuel (kerosene) must
not exceed 50 %.
Ambient temperature
0° C to -10° C
+32° F to +14° F
-1 0 ° C t o -15 ° C
+ 14° F to + 5° F
Fuels
Coolants
Lubricants etc.
The following table can be used as a
reference, if it becomes necessary to
add kerosene to No. 2-D diesel fuel.
The mixing ratios shown refer to the
total mixture based on No. 2-D
summer diesel fuel. We recommend
not to exceed the mixture ratio,
dependent on prevailing tempera­
tures.
No. 2-D Summer
Supplementary
diesel fuel
%
70
50
The adding of supplementary fuel to
No. 1-D diesel fuel is not recom­
mended even at low ambient temper­
atures.
fuel
%
30
50
85

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