Operating fluids and maintenance Operation and Maintenance Manual
Lubricants and operating materials
Fig. 28: The correlation between TBN and sulfur in fuel
1 TBN 3 If TBN <8 mgKOH/g, the
engine oil should be replaced
as soon as possible.
5 recommended TBN [mg
KOH/g]
2 ppm sulfur 4 with TBN [mg KOH/g]
Viscosity class:
The viscosity class has to be selected on the basis of the cold start temperature.
The following viscosity classes are permitted for the engines: 5W30, 5W40,
10W30, 10W40 and 15W40. The change intervals according to oil category must
be observed.
Difficulty factors
Difficulty factors can be:
– Frequent cold starts
– Environmental influences
•
Operating temperature
•
Dust
•
High humidity
•
Long standstill times
If there are difficulty factors or difficult usage conditions, the oil change and filter
change must be performed according to the following table.
Engine oil change intervals:
The change intervals are defined as follows:
Basic oil change interval * Factor oil category * Factor sulfur content = change
interval
The basic oil change interval is defined in the maintenance tables.
The factor “oil category”:
Lubricant category Oil change factor (factor 1)
Lubricant category 1
“1/4” => reduces the maintenance interval
by one quarter
42
© 2017 by Kohler Co. All rights reserved.
KD27V12 33521029401_3_1 en 2017-07-01
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