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6.1 Fuel
Fuel, Lubricants and Coolants
Fuel
High speed diesel conforming to IS 1460 or DIN 51601 or equivalent is
recommended to be used as fuel.
At very low temperature fluidity of diesel may become insufficient due to
paraffin separation. It is therefore necessary to mix supplementary fuel with
summer or winter grade diesel.
Care should be taken that diesel and supplementary fuel are thoroughly mixed
before filling.
Warning : Do not mix gasoline or alcohol with diesel. This mixture can cause
explosion.
Caution : Due to the precise tolerance of diesel injection systems, it is
extremely important that the fuel be kept clean and free of dirt or water. Dirt
or water in the system can cause severe damage to both injection pump and
injection nozzles.
Use low sulphur content fuel having a cloud point that is at least 10 degrees
below the lowest expected fuel temperature. Cloud point is the temperature
at which wax crystals begin to form in diesel.
Viscosity of the fuel must be kept above 1.0 centistoke to provide adequate
fuel system lubrication at 40
O
C.
Ambient
temperature upto
Deg. C
Summer
grade diesel
Supplementary
fuel
Percentage
Above 0
0 to -10
-10 to -15
100
70
50
0
30
50
Ambient
temperature upto
Deg. C
Winter
grade diesel
Supplementary
fuel
Percentage
0 to -15
-15 to -20
-20 and below
100
70
50
-
30
50
