Kohler KD103V20 Operation And Maintenance Manual page 138

Maintenance
Lubricants and operating fluids
Biodiesels
Only diesel fuels with a biodiesel content lower than 10% are allowed in Kohler KD diesel
engines.
Information
Diesel fuels with a biodiesel content between 10% and 20% may be used, but Kohler do not
recommend it as the operating costs linked to maintenance will drastically increase.
Fuel standard Fuel quality
(norm) (norm complement)
EN 14214 -
EN 14214 -
ASTM D6751 -
ASTM D6751 -
Tab. 27: KD approved biodiesel fuels
Paraffinic fuels (according to EN 15940)
Paraffinic fuels ("synthetic diesel") have a high cetane number and a low density compared to
diesel fuels. HVOs (Hydrotreated Vegetable Oils) are renewable. GTLs (Gas-To-Liquids) are fossil
paraffinic fuels. The use of paraffinic fuels results in lower emissions, but also slightly higher
fuel consumption and lower performance.
When using paraffinic diesel, a reduced filter change interval may be necessary due to the
cleaning effect.
Rubber and elastomers in the fuel system can be affected when changing from diesel fuel to
paraffinic fuel. Check daily whether fuel is leaking, and contact customer service for assistance
if necessary.
Information
EN 15940 fits into specification ASTM D975 1D-15 and ASTM D975 2D-15.
2)
Exchange interval of fuel filters is reduced (1/2), lifespan of fuel line components may be
reduced, fuel consumption is not guaranteed anymore.
3)
Biodiesels are not recommended for ESP (Emergency Standby Power) generator set applica‐
tions because of the risk of bacteria development.
4)
Specific improved storage condition is mandatory.
5)
Reinforced fuel primary filtration system, including water separator between main storage
and daily tank, is mandatory.
6)
Polishing primary fuel filtration is mandatory.
138
Required
lubri‐ Required
cating max.
capacity biodiesel
(max. ratio (%)
HFRR)
- 10%
- 20%
- 10%
- 20%
© 2022 by Kohler Co. All rights reserved.
Additional required
criteria
Fuel storage
Fuel filtration
Fuel storage
Fuel filtration
Fuel storage
Fuel filtration
Fuel storage
Fuel filtration
KD103V20 33521030901_2_1 EN_US
Perform‐
ance alter‐
Compat‐ ation /
ible with Reduced
EATS mainte‐
nance
interval
No 2) 3) 4) 5)
Yes
6)
No 2) 3) 4) 5)
Yes
6)
No
2) 3) 4) 5)
Yes
6)
No
2) 3) 4) 5)
Yes
6)
2022-09