Steyr M900

Differential fluid capacity & service interval

Steyr M900 differential fluid capacity ranges from 4,5 to 5 liters. Service intervals include checks every 12 months or 500 hours and changes every 1000 hours or 24 months. The data covers 8 configurations.

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

TypeSpecifications
  • M948, M 948a (1995-1998)
  • Front
  • Use: Normal
  • Capacity 5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M948, M 948a (1995-1998)
  • Front, limited slip
  • Use: Normal
  • Capacity 5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M958, M958a Turbo (1995-1998)
  • Front
  • Use: Normal
  • Capacity 5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M958, M958a Turbo (1995-1998)
  • Front, limited slip
  • Use: Normal
  • Capacity 5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M968, M968a Turbo (1995-1998)
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M968, M968a Turbo (1995-1998)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M975a Turbo (1995-1998)
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • M975a Turbo (1995-1998)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)

Additional Notes

  • The Steyr M900 front differential fluid capacity splits across two values depending on the variant: the M948, M948a, M958, and M958a Turbo each hold 5 liters, while the M968, M968a Turbo, and M975a Turbo each hold 4.5 liters.
  • A 5-liter front differential fill on the M948 and M958 variants is a relatively substantial volume, consistent with a heavy-duty axle housing designed to maintain adequate lubrication across demanding agricultural or utility operating conditions.
  • The 4.5-liter capacity on the M968, M968a Turbo, and M975a Turbo front differentials represents a modest reduction from the 5-liter figure seen on the smaller-displacement variants, suggesting a difference in axle housing geometry or design between the two groups.
  • Across all eight configurations in the 1995-1998 range, the fluid check interval is set at 12 months or 500 hours, whichever comes first, under normal use conditions.
  • The fluid change interval for all listed configurations is 1000 hours or 24 months under normal use, meaning the change interval is exactly double the check interval in both time and hours.
  • The dual-format interval structure, expressed in both calendar months and operating hours, reflects the mixed-use nature of agricultural machinery, where seasonal or low-hour machines would otherwise exceed safe fluid age before reaching an hour-based threshold.
  • Both the standard front differential and the limited slip front differential share identical capacity and service interval specifications within each variant group, meaning the limited slip mechanism does not alter the fluid volume or maintenance schedule as listed.
  • All eight rows carry a normal use condition designation, meaning the listed check and change intervals apply to standard operating environments rather than accelerated or severe-duty schedules.

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