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SC213 Diesel Engines
LUBRICATING OIL SPECIFICATION
Use only a good quality lubricating oil to the relevant specification as shown in the table below.
Attention : The type of lubricating oil to be used may be affected by the quality of the fuel which is available.
Always ensure that the correct viscosity grade of lubricating oil is used for the ambient temperature range in which
the engine will run as shown in the chart below.
0W
5W20
10W30
15W40
20W50
20
30
40
Recommended SAE viscosity grades
–30 –20 –10 0 10 20 30 40 50°C
–22 – 4 14 32 50 68 86 104 122°F
Ambient temperature
Lubricating oil specification
Engine Type
Specifications
Naturally aspirated.
Naturally aspirated
engines in heavy duty
earthmoving equipment.
Turbocharged.
Lub. oil conforming to API CJ4 of 15W/40 grade is
recommended for domestic use.
Distillation : This is an indication of the mixture of different
hydrocarbons in the fuel. A high ratio of light-weight
hydrocarbons can affect the combusion characteristics.
Low temperature fuels
Special winter fuels may be available for engine operation
at temperatures below 0°C. These fuels have a lower
viscosity and also limit the wax formation in the fuel at
low temperatures. If was formation occurs, this could stop
the fuel flow through the filter.
Aviation kerosene fuels
These fuels can be used but they can affect engine
performance. It is recommended that your consult
especially if JP4 fuel is to be used. These fuels are more
flammable than diesel fuel and need careful storage and
careful management.
To get the correct power and performance from your
engine, use good quality fuel. The recommended fuel
specification for Simpsons engines is indicated below :
Cetane number :
Sulphur :
Viscosity :
Distillation :
Density :
Cetane Number : Indicates ignition performance. A fuel
with a low cetane number can cause cold start problems
and affect combustion.
Viscosity : Is the resistance to flow and engine performance
can be affected if it is outside the limits.
Density : A lower density reduces engine power, a higher
density increases engine power and exhaust smoke.
Sulphur : A high sulphur content can cuase engine wear.
Where only high sulphur fuels are available, it is necessary
to use a highly alkaline lubricating oil in the engine or to
renew the lubricating oil more frequently.
FUEL SPECIFICATION
API CJ4
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