Kohler KD62V12A Operation And Maintenance Manual page 187

Fig. 101: KD recommended TAN / TBN evolution
A Operation forbidden zone
x Operating hours
y1 TAN-TBN (mgKOH / g)
1 TBN
2 TAN
Engine oil change intervals and monitoring
Engine oil change intervals
Standard change interval for the engine oil is mentioned in the technical documentation
accompanying the diesel engine (see "maintenance schedule" section). Additionally, the change
interval is also influenced by the engine oil initial quality and the severity of the operation.
The following types of operation are considered as "severe":
– Frequent cold starts
– Extended non operated period (standstill)
– Severe ambient conditions:
· Extreme operating temperatures (cold or hot)
· High humidity
· Dust
Always refer to the technical documentation of the diesel engine to determine the engine oil
change interval. In most of the case, the following definition applies: Change interval = Basic
engine oil change interval * Engine oil category factor * Sulfur content factor
Where:
– Standard engine oil change interval is indicated in the technical documentation of the diesel
engine.
– Engine oil category factor is defined in the table on KD engine oil category factors
(→ tab. 51, p.
KD62V12A 33521061401_1_1 EN_US
2023-10
189).
© 2023 by Kohler Co. All rights reserved.
Lubricants and operating fluids
C Safe operating zone
y2 Iron (ppm)
3 Iron
Maintenance
187