Ferrari 400

Differential fluid capacity & service interval

Ferrari 400 differential fluid capacity is 2 liters. Service intervals include checking at 10000 km and changing at 20000 km. The data covers 2 configurations.

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

TypeSpecifications
  • 400 GTi (1979-1985)
  • Rear
  • Use: Normal
  • Capacity 2 liter
  • Check 10000 km
  • Change 20000 km
  • 400 GT (1976-1979)
  • Rear
  • Use: Normal
  • Capacity 2 liter
  • Check 10000 km
  • Change 20000 km

Additional Notes

  • The Ferrari 400's rear differential holds 2 liters of fluid, a figure that applies uniformly across both the 400 GT (1976-1979) and the 400 GTi (1979-1985) variants.
  • A 2-liter differential capacity is relatively modest for a grand touring vehicle of the 400's class, reflecting the compact housing of the rear axle unit rather than a transaxle or combined gearbox-differential assembly.
  • The check interval for the rear differential is set at every 10,000 km under normal use conditions, meaning routine inspection is scheduled at twice the frequency of a full fluid change.
  • A full differential fluid change is specified at 20,000 km intervals under normal use conditions for both the 400 GT and 400 GTi, placing the drain-and-refill service on a longer cycle than the intermediate check.
  • The alignment of capacity, check, and change intervals across the 400 GT and 400 GTi generations indicates no revision to the rear differential service schedule occurred when the naturally aspirated GT transitioned to the fuel-injected GTi in 1979.

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