Holden Statesman, HQ

Automatic transmission fluid capacity & service interval

Holden Statesman HQ automatic transmission fluid capacity ranges from 1,7 to 10,4 liters. Service intervals consist of 5000 km or 3 months. The data covers 4 configurations.

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

TypeSpecifications
Statesman de Ville 308, HQ 308 HC (1971-1974)
  • Use: Normal
  • Capacity 8,7 liter (Dry fill)
  • Capacity 1,7 liter (Service fill)
  • Check 5000 km/ 3 months
  • Code: Trimatic 3/1
Statesman de Ville 308, HQ 308 HC (1971-1974)
  • Use: Normal
  • Capacity 10,4 liter (Dry fill)
  • Capacity 3,7 liter (Service fill)
  • Check 5000 km/ 3 months
  • Code: Turbo-Hydramatic 3/1
Statesman de Ville 350, HQ 350 HC (1971-1974)
  • Use: Normal
  • Capacity 8,7 liter (Dry fill)
  • Capacity 1,7 liter (Service fill)
  • Check 5000 km/ 3 months
  • Code: Trimatic 3/1
Statesman de Ville 350, HQ 350 HC (1971-1974)
  • Use: Normal
  • Capacity 10,4 liter (Dry fill)
  • Capacity 3,7 liter (Service fill)
  • Check 5000 km/ 3 months
  • Code: Turbo-Hydramatic 3/1

Additional Notes

  • The Holden Statesman HQ 308 HC lists two distinct automatic transmission configurations for 1971-1974, one with a dry fill capacity of 8.7 liters and another with a dry fill capacity of 10.4 liters, indicating that two different automatic transmission units were fitted across the production run.
  • A dry fill capacity represents the total fluid volume required when filling a completely drained or rebuilt transmission from empty, as opposed to a routine top-up or fluid change with the torque converter partially retained.
  • The 8.7-liter dry fill configuration carries a service fill of 1.7 liters, meaning a routine fluid service on that unit displaces a relatively small proportion of the total system volume.
  • The 10.4-liter dry fill configuration carries a service fill of 3.7 liters, a notably larger service volume that reflects a greater fluid exchange during a standard interval service compared to the smaller-capacity unit.
  • Both capacity configurations for the 308 HC share an identical check interval of 5,000 km or 3 months under normal use conditions, applied uniformly regardless of which transmission unit is installed.
  • The Statesman de Ville 350 and HQ 350 HC share the same two transmission capacity configurations as the 308 HC variants, with dry fill values of 8.7 liters and 10.4 liters respectively, and matching service fill values of 1.7 liters and 3.7 liters.
  • Across all four rows covering both the 308 HC and 350 HC variants from 1971-1974, the fluid check interval of 5,000 km or 3 months is consistent, with the 3-month time limit serving as an independent trigger regardless of distance accumulated.

Other Systems