Austin 3-Litre, ADO61
Automatic transmission fluid capacity & service interval
Austin 3-Litre and ADO61 models require automatic transmission fluid with a capacity range of 2,8 to 5,8 liters. Service intervals consist of 5000 km or 3 months. The data covers 1 configuration.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| 3-Litre, ADO61 (1967-1971) |
|
Additional Notes
- The Austin 3-Litre ADO61 carries a transmission-only automatic fluid capacity of 5.8 liters, which represents the service fill volume without accounting for fluid retained in the torque converter.
- An additional 2.8 liters is attributed to the torque converter on the Austin 3-Litre ADO61, meaning a full overhaul or dry fill would require both figures to be considered together when determining total system volume.
- The split between the 5.8-liter transmission capacity and the 2.8-liter torque converter capacity reflects a common design characteristic of automatic transmissions from this era, where the torque converter holds a significant portion of the total fluid volume independently of the main transmission sump.
- The fluid level check interval is specified at every 5,000 km or 3 months, whichever comes first, and applies under normal use conditions.
- A 3-month time-based interval running alongside the 5,000 km distance interval indicates that low-mileage operation does not exempt the vehicle from periodic fluid checks, as time alone is treated as a sufficient trigger.