Kubota Ride-on grass cutting machines

Automatic transmission fluid capacity & service interval

Kubota ride-on grass cutting machines require automatic transmission fluid with a capacity range of 2,3 to 6 liters. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • G18HD
  • Hydrostatic
  • Use: Normal
  • Capacity 6 liter
  • T1570
  • Hydrostatic
  • Use: Normal
  • Capacity 2,3 liter
  • T1670
  • Hydrostatic
  • Use: Normal
  • Capacity 3,6 liter
  • T1760
  • Hydrostatic
  • Use: Normal
  • Capacity 2,4 liter
  • T1770
  • Hydrostatic
  • Use: Normal
  • Capacity 3,6 liter
  • T1870
  • Hydrostatic
  • Use: Normal
  • Capacity 3,6 liter

Additional Notes

  • The Kubota G18HD carries the largest hydrostatic transmission fluid capacity in this group at 6 liters, a notably higher figure than the T-series models listed, which reflects the G18HD's larger frame and more substantial drivetrain design typical of out-front ride-on cutting machines.
  • Hydrostatic transmissions use pressurized fluid to transfer power from the engine to the drive wheels, meaning fluid volume directly affects the system's ability to maintain operating pressure and temperature during extended cutting sessions.
  • The T1570 holds 2.3 liters of automatic transmission fluid, the smallest capacity among the T-series models listed, consistent with the lighter drivetrain found in entry-level ride-on mowers in this range.
  • The T1760 carries 2.4 liters, placing it close to the T1570 in capacity despite being a distinct model, while the T1670, T1770, and T1870 all share a 3.6-liter capacity, indicating a common transmission platform across those three models.
  • All six models carry normal-use service conditions for their hydrostatic transmission fluid specifications, meaning the listed capacities apply to standard operating environments rather than elevated-demand or severe-duty cycles.
  • The shared 3.6-liter figure across the T1670, T1770, and T1870 suggests a degree of parts commonality in the transmission assemblies of those models, which can be relevant when sourcing fluid quantities for fleet servicing.

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