Fiat-Trattori 90

Power steering fluid capacity & service interval

Fiat-Trattori 90 uses power steering fluid with a capacity range of 1,7 to 2 liters. The service interval for fluid changes is 800 hours. The data covers 10 configurations.

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

TypeSpecifications
85-90, 85-90 DT (1991-1993)
  • Use: Normal
  • Capacity 2 liter
  • Change 800 hours
110-90 DT (1987-1993)
  • Use: Normal
  • Capacity 1,7 liter
  • Change 800 hours
65-90, 65-90 DT (1987-1990)
  • Use: Normal
  • Capacity 2 liter
  • Change 800 hours
100-90, 100-90 DT (1984-1993)
  • Use: Normal
  • Capacity 1,7 liter
  • Change 800 hours
115-90, 115-90 DT (1984-1990)
  • Use: Normal
  • Capacity 1,7 liter
  • Change 800 hours
55-90, 55-90 DT (1984-1989)
  • Use: Normal
  • Capacity 2 liter
  • Change 800 hours
60-90, 60-90 DT (1984-1990)
  • Use: Normal
  • Capacity 2 liter
  • Change 800 hours
70-90, 70-90 DT (1984-1993)
  • Use: Normal
  • Capacity 2 liter
  • Change 800 hours
80-90, 80-90 DT (1984-1993)
  • Use: Normal
  • Capacity 2 liter
  • Change 800 hours
90-90, 90-90 DT (1984-1993)
  • Use: Normal
  • Capacity 1,7 liter
  • Change 800 hours

Additional Notes

  • Across the Fiat-Trattori 90 series, power steering fluid capacity falls into one of two values: 1.7 liters or 2 liters, depending on the specific model variant.
  • The 1.7-liter capacity applies to the 90-90, 90-90 DT, 100-90, 100-90 DT, 110-90 DT, and 115-90, 115-90 DT configurations.
  • The 2-liter capacity is specified for the lower-numbered variants in the range, covering the 55-90, 55-90 DT, 60-90, 60-90 DT, 65-90, 65-90 DT, 70-90, 70-90 DT, 80-90, 80-90 DT, and 85-90, 85-90 DT.
  • In hydraulic steering systems, a stated fluid capacity reflects the volume held within the reservoir, pump circuit, and steering cylinder combined. A figure in the 1.7-to-2-liter range is consistent with a compact tractor-grade closed-loop steering circuit.
  • All ten model configurations share an identical fluid change interval of 800 operating hours under normal use conditions. In agricultural machinery, hours-based intervals are standard because seasonal and variable-load operation makes calendar-based intervals impractical.
  • The 800-hour interval applies uniformly regardless of whether the variant is a two-wheel-drive or four-wheel-drive DT configuration, as both versions within each model pairing carry the same specification.
  • The 85-90 and 85-90 DT, introduced from 1991, share the 2-liter capacity and 800-hour interval common to the broader lower-numbered group, despite entering production later than most other variants in the series.
  • The 110-90 DT, available from 1987-1993, is the only variant in the 1.7-liter group offered exclusively in four-wheel-drive DT form, whereas the other 1.7-liter models each have both a standard and a DT version listed.

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