Steyr M900

Power steering fluid capacity & service interval

Steyr M900 power steering fluid capacity ranges from 9,6 to 15 liters. Service intervals include checks every 12 months or 500 hours and fluid changes every 1000 hours or 24 months. The data covers 4 configurations.

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

TypeSpecifications
  • M948, M 948a (1995-1998)
  • System, power steering
  • Use: Normal
  • Capacity 9,6 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • M958, M958a Turbo (1995-1998)
  • System, power steering
  • Use: Normal
  • Capacity 9,6 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • M968, M968a Turbo (1995-1998)
  • System, power steering
  • Use: Normal
  • Capacity 15 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • M975a Turbo (1995-1998)
  • System, power steering
  • Use: Normal
  • Capacity 15 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months

Additional Notes

  • The Steyr M900 series covers four distinct configurations across the 1995-1998 model years: the M948/M948a, M958/M958a Turbo, M968/M968a Turbo, and M975a Turbo.
  • The M948 and M948a share a hydraulic system and power steering fluid capacity of 9.6 liters, as does the M958/M958a Turbo variant.
  • The M968/M968a Turbo and M975a Turbo each carry a notably larger capacity of 15 liters, which is approximately 56% greater than the 9.6-liter figure seen in the lower configurations.
  • A 15-liter hydraulic system capacity in a power steering application typically reflects a more complex or larger-displacement steering circuit, often associated with heavier-duty or higher-output drivetrain configurations.
  • All four configurations share identical check intervals of every 12 months or 500 hours, whichever comes first, indicating a dual time-based and usage-based maintenance schedule.
  • The fluid change interval across all configurations is set at 1000 hours or 24 months, again applying whichever threshold is reached first under normal use conditions.
  • The check interval of 500 hours falls at exactly half the change interval of 1000 hours, meaning a fluid inspection occurs at the midpoint of each full service cycle.
  • All specifications listed apply under normal use conditions, meaning the intervals and capacities are not adjusted for severe-duty operation in any of the four configurations.

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