Steyr S28

Transfer case fluid capacity & service interval

Steyr S28 transfer case fluid capacity is 4,5 liters. Service intervals include checking at 20000 km and changing at 40000 km or 12 months. The data covers 3 configurations.

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

TypeSpecifications
19S28 4x4 (1988-1993)
  • Use: Normal
  • Capacity 4,5 liter
  • Check 20000 km
  • Change 40000 km/ 12 months
  • Code: VG 1200
26S28 6x6 (1988-1993)
  • Use: Normal
  • Capacity 4,5 liter
  • Check 20000 km
  • Change 40000 km/ 12 months
  • Code: VG 1200
32S28 6x6 (1988- )
  • Use: Normal
  • Capacity 4,5 liter
  • Check 20000 km
  • Change 40000 km/ 12 months
  • Code: VG 1200

Additional Notes

  • The Steyr S28 transfer case fluid capacity is 4.5 liters across all three configurations listed — the 19S28 4x4, the 26S28 6x6, and the 32S28 6x6. A consistent capacity across different drivetrain layouts suggests a shared transfer case unit regardless of axle count.
  • The 4.5-liter fill volume represents a service fill quantity, meaning the amount of fluid required during a standard drain-and-refill procedure rather than a full overhaul or component replacement scenario.
  • Under normal use conditions, the transfer case fluid check interval is set at 20,000 km for all three S28 configurations. A check interval shorter than the change interval is standard practice, allowing for fluid level and condition monitoring between full service events.
  • The fluid change interval for all three configurations under normal use is 40,000 km or 12 months, whichever comes first. The inclusion of a time-based limit alongside a distance-based one reflects that fluid degradation can occur through age alone, independent of mileage accumulated.
  • The 19S28 is a 4x4 configuration, while both the 26S28 and 32S28 are 6x6 configurations. Despite the difference in the number of driven axles, all three share identical transfer case fluid capacity and service interval specifications.
  • The 26S28 6x6 and 19S28 4x4 share the same 1988-1993 production year range, while the 32S28 6x6 carries a starting year of 1988 without a closing year in the specifications.

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