Operation and Maintenance Manual Maintenance
Lubricants and operating fluids
Selecting the engine oil
Fuel sulfur content influence
The following table is intended to help select the right engine oil based on the total base number
(TBN) and according to the sulfur rate.
This measurement value is important for reducing combustion gases that are influenced by the
sulfur content in the fuel.
Ensure that the index of basicity TBN (Total Base Number) is >8 mg mgKOH/g and the soot
(SiO) is <3%
The following measures must be taken in the case of diesel fuels with a sulfur content
above 0.5%:
– Use an engine oil with a total base number (TBN) of more than 10 mgKOH/g in case of high
sulphur rate (0.5 < Sulfur ratio % <1).
– Shorten the oil drain intervals according to chapter “Oil change interval”.
– Confirm oil change interval by oil analyzes.
Information
u 0,5% of sulfur = 5000 ppm and 1% of sulfur = 10000 ppm
Fig. 82: TBN curves according to sulphur rate
1 TBN - Index of basicity 4 Recommended Index of basicity
(mgKOH/g)
2 Sulfur content part per million 5 Minimum Index of basicity (mgKOH/g)
3 Engine oil must be changed as soon as
possible
Viscosity grade
Information
u Monograde lube oils are prohibited.
Following viscosity classes are permitted
– 5W40
– 10W40
– 15W40 with coolant preheating system
The selection of lubricant viscosity is based on the SAE classification (Society of Automotive Engi-
neers).
KD83V16 33521030601_0_1 EN_US
2018-07
© 2018 by Kohler Co. All rights reserved.
127
To Next Page
Loading...
Need help?
General
