Kubota Technical Service Support

Below are the Oil and Grease Maintenance Tables for equipment lubrication involving grease and oil for Kubota products. For general maintenance information, refer to the Check Points Maintenance Schedule.These tables are generic for all Kubota products. We recommend that you consult the Operator's Manual for information on your specific model.
 
Lubricants Maintenance Table
 
System
Application
Specifications
DIESEL FUEL
Temperatures below 14°F (-10°C)
No. 1-D Diesel Fuel
Temperatures above 14°F (-10°C)
No. 2-D Diesel Fuel
All Applications
Min. Cetane rating of 45;
50 below -4°F
Interim Tier4 and Newer Ultra Low Sulfur Diesel (15 ppm or less) required
All Other Applications
Ultra Low Sulfur Diesel (15 ppm or less) highly recommended
BIO DIESEL FUEL
Kubota has released B20 and B5 fuels for certain models. B5 only for Interim Tier4 and Newer.
Contact your authorized Kubota dealer for details.
COOLANT
All Applications
Use a 50/50 mixture of clean water and Anti-Freeze. *
DIESEL ENGINE OIL
EGR Type
API Classification
Interim Tier4 and Newer
CJ-4 Required**

 

External EGR
CJ-4, CI-4**

 

Non-EGR
CJ-4, CI-4, CH-4**
GASOLINE ENGINE OIL
All Applications
API Classifications SJ, SL, SM, or Higher
TRANSMISSION OIL
All Applications
KUBOTA Universal Dynamic Tractor (UDT) or SUPER UDT2 Fluid
POWER STEERING GEAR
All Applications
KUBOTA Universal Dynamic Tractor (UDT) or SUPER UDT2 Fluid
FRONT AXLE ASSEMBLY
4WD Tractor Applications
KUBOTA Universal Dynamic Tractor (UDT) or Super UDT2 Fluid recommended, or SAE 80W90 (GL-4) Gear Oil
HYDRAULIC OIL
Excavator and Compact Track Loader Winter Applications***
ISO 32
Factory Fill - Excavator and Compact Track Loader Winter Applications*** ISO 46
Excavator and Compact Track Loader Summer or High Ambient Temperature Applications*** ISO 68
TRACK ASSEMBLY Excavator and Compact Track Loader Track Roller, Upper Roller, and Front/Rear Idler SAE30 Motor Oil (CD or higher)
DRIVE UNIT Excavator Wheel Motor (Drive Unit) Winter Applications SAE75 or SAE80 Gear Oil (GL-4)
Factory Fill - Excavator Wheel Motor (Drive Unit) Summer or High Ambient Temperature Applications SAE90 Gear Oil (GL-4)
Excavator Wheel Motor (Drive Unit) Summer or High Ambient Temperature Applications SAE140 Gear Oil (GL-4)
* Never mix different colors of antifreeze.
**As of May 2012 this information supersedes all previous publications regarding the use of CJ-4
*** Do not use multi-function oils in Kubota Excavator hydraulic systems.
 

Non EGR Engine

External EGR Engine

 
 
DIESEL ENGINE - OIL VISCOSITY RECOMMENDATIONS
OUTSIDE TEMPERATURE
Below 32° F (0° C)
Above 32° F (0° C)
SAE/Viscosity
10W-30
10W-30 or 15W-40
 
GASOLINE ENGINE - OIL VISCOSITY RECOMMENDATIONS
OUTSIDE TEMPERATURE
Below 32° F (0° C)
Above 32° F (0° C)
SAE/Viscosity
5W-20 or 5W-30
10W-30 or 15W-40
 
 
 
 
 
HYDRAULIC - OIL VISCOSITY RECOMMENDATIONS
 
 
OUTSIDE TEMPERATURE
IN WINTER OR COLD TEMPERATURES
IN SUMMER OR HIGH AMBIENT TEMPERATURES
 
 
SAE/Viscosity
ISO 32 or ISO 46
ISO 68
 
 
 
 
Notes:
Transmission Fluid:KUBOTA Super Universal Dynamic Tractor Fluid (SUPER UDT) is the original and recommended transmission hydraulic fluid.
The fluid used to lubricate the transmission is also used as the operating hydraulic fluid. To ensure proper operation of the hydraulic system and complete lubrication of the transmission, we recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum protection and performance. (Consult your KUBOTA dealer for further details.)
Grease Maintenance Table
 
GREASING No. of GREASE POINTS CAPACITY TYPE OF GREASE

FRONT WHEEL HUBS

2 (2WD only)

A small amount

Bearing Grease

 

 

KNUCKLE SHAFT

2 (2WD only)

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

CLUTCH PEDAL

1

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

BRAKE PEDAL

1

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

PEDAL SHAFT SUPPORT

1

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

TOP LINK

2

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

TOP LINK BRACKET

3

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

HANDLE POST

3

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

LIFT ROD

1

Until Grease Overflows

SAE Multi-Purpose Type Grease

 

 

BATTERY TERMINAL

2

Cover terminals with a thin film

Non-Conductive Grease

 

 

CLUTCH RELEASE HUB

1

Grease when assembled

SAE Multi-Purpose Type Grease