Massey Ferguson MF 5S

Automatic transmission fluid capacity & service interval

Massey Ferguson MF 5S requires automatic transmission fluid with a capacity range of 20 to 61 liters. The service interval for fluid changes is 1800 hours. The data covers 10 configurations.

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

TypeSpecifications
MF 5S.105 Dyna-4 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-4
MF 5S.105 Dyna-6 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-6
MF 5S.115 Dyna-4 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-4
MF 5S.115 Dyna-6 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-6
MF 5S.125 Dyna-4 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-4
MF 5S.125 Dyna-6 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-6
MF 5S.135 Dyna-4 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-4
MF 5S.135 Dyna-6 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-6
MF 5S.145 Dyna-4 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-4
MF 5S.145 Dyna-6 (2021- )
  • Use: Normal
  • Capacity 51-61 liter
  • Capacity 20 liter (Auxiliary hydraulics)
  • Change 1800 hours
  • Code: Dyna-6

Additional Notes

  • The Massey Ferguson MF 5S series automatic transmission fluid specifications cover the transaxle, which in agricultural tractors is an integrated unit combining the transmission, rear axle, and hydraulic system into a single shared fluid reservoir.
  • The transaxle capacity is listed as a range of 51 to 61 liters across all MF 5S configurations. A range rather than a fixed value typically reflects variation depending on the drain level, whether the hydraulic circuits are fully evacuated, and the position of the tractor during the fill procedure.
  • An additional 20-liter capacity is specified separately for auxiliary hydraulics across all configurations. Auxiliary hydraulic circuits on tractors of this class supply external implements and remote valves, and the fluid volume for these circuits is counted apart from the main transaxle fill.
  • The fluid change interval is set at 1,800 hours under normal use conditions for all ten configurations. In tractor service, hours-based intervals are standard because engine runtime is a more consistent measure of fluid degradation than calendar time, given the variable seasonal and workload patterns of agricultural equipment.
  • All ten configurations share identical capacity and interval specifications, meaning the Dyna-4 and Dyna-6 transmission variants within the same power rating carry the same transaxle fluid volume and the same 1,800-hour change schedule.
  • The Dyna-4 and Dyna-6 designations refer to the number of powershift steps within each transmission range. Despite the difference in shift steps between the two variants, the shared 51-61 liter transaxle capacity indicates the fluid reservoir is common to both transmission architectures across the MF 5S lineup.
  • The five power variants in the MF 5S range covered here, from the 5S.105 through to the 5S.145, all carry the same 51-61 liter transaxle capacity, indicating the physical size of the shared transaxle housing does not change across the power ratings represented in these specifications.

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