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Lubricant Maintenance Schedule

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KUBOTA LUBRICANTS MAINTENANCE TABLES

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.

BIODIESEL FUEL

Kubota has released B20 and B5 fuels for certain models. Learn more about Biodiesel Fuels.

Lubricants Maintenance

SystemApplicationSpecifications
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.

DIESEL ENGINE - OIL VISCOSITY RECOMMENDATIONS
OUTSIDE TEMPERATUREBelow 32° F (0° C)Above 32° F (0° C)
SAE/Viscosity 10W-30 10W-30 or 15W-40
GASOLINE ENGINE - OIL VISCOSITY RECOMMENDATIONS
OUTSIDE TEMPERATUREBelow 32° F (0° C)Above 32° F (0° C)
SAE/Viscosity 5W-20 or 5W-30 10W-30 or 15W-40
HYDRAULIC ENGINE - OIL VISCOSITY RECOMMENDATIONS
OUTSIDE TEMPERATUREIN WINTER OR COLD TEMPERATURESIN SUMMER OR HIGH AMBIENT TEMPERATURES
SAE/Viscosity SO 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 dealer for further details.)