Kubota G18 Operator's Manual page 121

IMPORTANT:
¡ To prevent serious damage to hydraulic systems, use only KUBOTA genuine fluid or its equivalent.
NOTE:
¡ Engine Oil:
¡ Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper
SAE Engine Oil according to the ambient temperatures as shown above.
¡ With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use of a
low-sulfur fuel on on-road vehicle engines. When an off-road vehicle engine runs on a high-sulfur fuel, it is
advisable to employ the CF, CD or CE lubricating oil with a high total base number. If the CF-4 or CG-4
lubricating oil is used with a high-sulfur fuel, change the lubricating oil at shorter intervals.
¡ Lubricating oil recommended when a low-sulfur or high-sulfur fuel is employed.
8
: Recommendable
Fuel
Lubricating
oil class
Low-sulfur
CF 8
8
CF-4
CG-4 8
¡ Transmission oil (KUBOTA SUPER UDT *1):
KUBOTA Original Transmission hydraulic fluid
The oil used to lubricate the transmission is also used as hydraulic fluid. To insure proper operation of the
hydraulic system and complete lubrication of the transmission, it is important that a multi-grade transmission
fluid be used in this system. We recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum
protection and performance. (Consult your KUBOTA Dealer for further detail.)
Do not mix different brands together.
¡ Indicated capacity of water and oil are manufacture's estimate.
¡ The following are recomended oils, by brand name, that may be used in the transmission hydraulic system.
Reference
Maker
Exxon Torque Fluid 56
Shell Donax TD
Union Hydraulic / Tractor Fluid
Mobil Mobil Fluid 424
Caltex RPM Tractor Hydraulic Fluid
Caltex
TDH Fluid KBT
Texaco Texaco TDH Fluid
Total Total Transmission MP
i
: Not Recommendable
Remark
High-sulfur
8 TBN X 10
i
i
Brand name
Maintenance
103