Kohler KD62V12 Operation And Maintenance Manual page 152

Maintenance
Lubricants and operating fluids
– Sulfur content factor is defined in the table on KD fuel sulfur content factors
page
As an example:
– Standard oil change interval is 500 operating hours.
– Oil category is 3, so oil category factor is 2.
– Sulfur content is 1.3%, so sulfur content factor is ¼.
– Change interval = 500 * 2 * 1/4 = 250 hours
Lubricating oil monitoring
Close monitoring of lubricating oil quality brings benefits in several areas:
– Optimization of oil-change intervals
· Improves your economics
· Reduces environmental footprint
– Optimization of diesel engine availability
– Early detection of potential damage
When one of these criteria is no more fulfilled in operating lubricating oil, oil must be changed
immediately:
Criteria group
Contaminants
Other contaminants
Viscosity
Acid / Basic
Oxidation
Tab. 36: KD lubricating oil change criteria
A) Potassium is now incorporated in new-generation lubricating oils; conclusion must be
drawn only by having initial composition and evolution available.
Mineral lubricating oils
The use of mineral lubricating oils is strictly forbidden in Kohler KD diesel engines.
152
149).
Criteria
Aluminum
Iron
Chromium
Copper
Lead
Silicon
Sodium
Potassium
Water
Carbon
Fuel
@ 40 °C (104 °F)
@ 100 °C (212 °F)
Viscosity index
TAN & TBN
© 2022 by Kohler Co. All rights reserved.
Maximum values
< 15 ppm
< 40 ppm
< 10 ppm
< 20 ppm
< 25 ppm
< 15 ppm
< 20 ppm
A)
< 25 ppm
< 0.2%
< 3%
< 3%
0.9 V < V < 1.1 V
0
0.9 V < V < 1.1 V
0
0.88 Vi < Vi < 1.12 Vi
0
TAN < TBN - 2 mgKOH/g
< 25 abs.cm
(see: tab. 35,
A)
(V = fresh oil viscosity
0 0
(V = fresh oil viscosity
0 0
(Vi = fresh oil viscosity
0 0
-1
KD62V12 33521030301_8_1 EN_US 2022-09