Austin-Healey 3000

Manual transmission fluid capacity & service interval

Austin-Healey 3000 manual transmission fluid capacity ranges from 0,8 to 3,3 liters. Service intervals require changes every 6000 miles or 9600 km. The data covers 3 configurations.

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

TypeSpecifications
3000 MK III (1963-1968)
  • Use: Normal
  • Capacity 3,3 liter (Mechanical transmission)
  • Capacity 0,8 liter (Overdrive unit)
  • Change 6000 miles/ 9600 km
  • Code: 4/1
3000 MK II (1961-1963)
  • Use: Normal
  • Capacity 3,3 liter (Mechanical transmission)
  • Capacity 0,8 liter (Overdrive unit)
  • Change 6000 miles/ 9600 km
  • Code: 4/1
3000 MK I (1959-1961)
  • Use: Normal
  • Capacity 3,3 liter (Mechanical transmission)
  • Capacity 0,8 liter (Overdrive unit)
  • Change 6000 miles/ 9600 km
  • Code: 4/1

Additional Notes

  • The Austin-Healey 3000 manual transmission holds 3.3 liters of fluid across all three Mark variants, covering the 1959-1968 production span.
  • When an overdrive unit is fitted, a separate 0.8-liter fluid capacity applies alongside the main mechanical transmission fill, meaning the two assemblies are serviced as distinct volumes rather than a shared sump.
  • The 6,000-mile (9,600 km) change interval is specified under normal use conditions for all three Mark variants, placing fluid renewal on a relatively frequent schedule by modern standards.
  • The MK I (1959-1961), MK II (1961-1963), and MK III (1963-1968) share identical capacity and interval figures, indicating no revision to manual transmission fluid specifications occurred across the generational updates of the 3000 lineup.

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