LUBRICATING OIL RECOMMENDATIONS
4012/16 Diesel, February 1997 1
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QUANTITY OF OIL
TYPE OF OIL
The industrial diesel engine should be lubricated with a good quality oil conforming to API
CD or CCMC D4 specifications. All the major oil companies formulate oils to the above
specifications.
VISCOSITY OF OIL
Use oil of:
SAE10W/30 in starting temperatures below -15°C (without sump heater)
SAE10W/40 in starting temperatures from -15°C to 0°C
SAE30 in starting temperatures from 0°C to 32°C or Mobil Devlac Super
SAE40 in starting temperatures above 32°C 1300 SAE 15W/40
OIL CHANGE PERIODS
For normal operation of the engine the oil should be changed every 250 hours or annually
whichever is the sooner.
Under certain circumstances where a centrifugal oil filter is fitted to the engine and an oil
analysis programme has been carried out with the oil supplier over a period of 1000 hours
of engine operation, it may be possible to extend the oil change period up to maximum of
350 hours.
To achieve this extended oil change period, a centrifugal oil filter must be fitted and cleaned
every 250 hours between routine oil changes, and at every oil change point i.e. 350 hours
maximum.
As the oil deteriorates it is essential that the following parameters must not be exceeded at
the oil change point:
1 The viscosity of the oil must not increase by more than 10cSt at 100°C.
2 The total base number of the oil should not reduce to less than 50% of the value of new
oil.
3 The flash point of the oil should exceed 180°C.
4 The water content of the oil must not exceed 1%.
5 The fuel content of the oil must not exceed 1%.
6 Oil samples should be taken from the mean sump oil level of the engine.
Sump Capacity Dipstick 4012 4016
Minimum 136 litre(30 gal) 147 litre (33 gal)
Maximum 159 litre (35 gal) 214 litre (47 gal)
