Kubota Lubricant Maintenance

System

Products

Requirements

Diesel Fuel

Temp below 14°F (-10°C)

No. 1-D Diesel Fuel

Temp above 14°F (-10°C)

No. 2-D Diesel Fuel

All Products

Minimum Cetane rating of 45; 50 below -4°F

Interim Tier4 or Newer

Ultra-Low Sulfur Diesel (15ppm or lower) required

All Other Products

Ultra-Low Sulfur Diesel (15ppm or lower) recommended

Bio-Diesel Fuel

Kubota issued B20 and B5 fuel for specific tractor models. B5 is only for Interim 4 or Newer

Please contact Country Sales and Service for further details

Coolant

All Products

* Use a half and half (50/50) solution of Anti-Freeze and water.

Diesel Engine Oil

EGR

API Classification

Interim Tier4 or Newer

** CJ-4 Required

External EGR

** CJ-4 or CI-4

Non-EGR

** CJ-4, CI-4, or CH-4

Gas Engine Oil

All Products

API Classification SJ, SL, SM, or higher

Transmission Oil

All Products

Kubota Universal Dynamic Tractor (UDT) or Super UDT2 Fluid

Power Steering

All Products

Kubota Universal Dynamic Tractor (UDT) or Super UDT2 Fluid

Front Axle Assembly

4WD Tractor

Kubota Universal Dynamic Tractor (UDT) or Super UDT2 Fluid or SAE 80W90 (GL-4) Gear Oil

Hydraulic Oil

*** Excavator and Compact Track Loader Winter Models

ISO 32

*** Factory Fill – Excavator and Compact Track Loader Winter Models

ISO 46

*** Excavator and Compact Track Loader Summer or High Ambient Temperature Models

ISO 68

Track Assembly

Excavator and Compact Track Loader Track Roller, Upper Roller, and Front/Rear Idler

SAE30 Motor Oil (CD or above)

Drive Unit

Excavator Wheel Motor Winter Model (Drive Unit)

SAE75 or SAE80 Gear Oil (GL-4)

Factory Fill – Excavator Wheel Motor Summer (Drive Unit) or High Ambient Temperature Model

SAE90 Gear Oil (GL-4)

Excavator Wheel Motor Summer (Drive Unit) or High Ambient Temperature Model

SAE140 Gear Oil (GL-4)