Montana Tractors

Differential fluid capacity & service interval

Montana Tractors differential fluid capacity ranges from 4,4 to 8 liters. Service intervals include checks at 10 hours and changes at 250, 300, 600, or 1000 hours. The data covers 14 configurations.

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

TypeSpecifications
Montana 30 CV
  • Use: Normal
  • Capacity 5,5 liter
  • Check 10 hours
  • Change 600 hours
Montana 30 CV
  • Use: First change only
  • Capacity 5,5 liter
  • Change 300 hours
Montana 40 CV
  • Use: Normal
  • Capacity 5,5 liter
  • Check 10 hours
  • Change 600 hours
Montana 40 CV
  • Use: First change only
  • Capacity 5,5 liter
  • Change 300 hours
Montana 45 CV
  • Use: Normal
  • Capacity 8 liter
  • Check 10 hours
  • Change 600 hours
Montana 45 CV
  • Use: First change only
  • Capacity 8 liter
  • Change 300 hours
Montana 50 CV
  • Use: Normal
  • Capacity 8 liter
  • Check 10 hours
  • Change 600 hours
Montana 50 CV
  • Use: First change only
  • Capacity 8 liter
  • Change 300 hours
Montana 60 CV
  • Use: Normal
  • Capacity 8 liter
  • Check 10 hours
  • Change 600 hours
Montana 60 CV
  • Use: First change only
  • Capacity 8 liter
  • Change 300 hours
  • Solis 75
  • Front
  • Use: Normal
  • Capacity 4,4 liter
  • Check 10 hours
  • Change 1000 hours
  • Solis 75
  • Front
  • Use: First change only
  • Capacity 4,4 liter
  • Check 10 hours
  • Change 250 hours
  • Solis 85
  • Front
  • Use: Normal
  • Capacity 4,4 liter
  • Check 10 hours
  • Change 1000 hours
  • Solis 85
  • Front
  • Use: First change only
  • Capacity 4,4 liter
  • Check 10 hours
  • Change 250 hours

Additional Notes

  • The Montana 30 CV and 40 CV share an identical differential fluid capacity of 5.5 liters, while the 45 CV, 50 CV, and 60 CV models each require 8 liters, reflecting the larger differential housings associated with higher-output tractor configurations.
  • Across all Montana CV-series models, the first-change interval is set at 300 hours, exactly half the standard 600-hour change interval. An early drain at 300 hours removes metal particles and contaminants generated during the differential's break-in period before normal service intervals apply.
  • The standard 600-hour change interval on Montana 30 CV through 60 CV models applies under normal use conditions, with a fluid level check required every 10 hours throughout service life.
  • The Solis 75 and Solis 85 front differential capacity is 4.4 liters, which is notably smaller than the 8-liter capacity specified for the higher-output Montana CV-series models.
  • The Solis 75 and Solis 85 front differential carries a normal-use change interval of 1,000 hours, considerably longer than the 600-hour interval specified for the Montana CV-series differentials.
  • For the Solis 75 and Solis 85, the first-change interval on the front differential is 250 hours, and the 10-hour fluid level check is retained even during the initial break-in period, unlike the Montana CV-series where the check interval is only listed under normal use conditions.
  • The Montana 45 CV differential capacity increases to 8 liters from the 5.5 liters specified for the 30 CV and 40 CV, marking a clear capacity step between the lower and mid-range models in the Montana tractor lineup.

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