Case IH FARMALL 100N, Service Manual

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INTRODUCTION
Charge Pressure
The correct degree of engine oil viscosity depends on the
environment temperature. Refer to the chart on the right
when selecting the oil grade for your tractor engine.
NOTE: In areas where prolonged periods of extreme tem-
peratures are encountered, local lubrication practices are
acceptable. The use of SAE 5W with extremely low tem-
peratures and SAE 50 for extremely high temperatures is
advised.
DCUTDNEGB126S4A
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Sulphur in Fuel
The engine oil change frequency is given in this section.
However, locally available fuel may have a high sulphur
content, in which case the engine oil change period
(stated in this section) should be adjusted as follows:
Sulphur contents Oil replacement interval
less than 0.5%
normal
0.5 – 1.0% half the normal
greater than 1.0% one quarter normal
NOTICE: Avoid using fuel with sulphur content higher
than 1.3% .
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