Oldsmobile Firenza (USA / CAN)
Automatic transmission fluid capacity & service interval
Oldsmobile Firenza (USA / CAN) automatic transmission fluid capacity ranges from 3,75 to 5,75 liters. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Firenza 2.8 V6 (1985-1987) |
|
| Firenza 1.8 (1982-1986) |
|
| Firenza 2.0 (1982-1988) |
|
Additional Notes
- The Oldsmobile Firenza (USA / CAN) automatic transaxle carries an overhaul capacity of 5.75 liters across all three engine configurations — the 1.8, 2.0, and 2.8 V6.
- Overhaul capacity reflects the total fluid volume required when the transmission is fully disassembled and reassembled, accounting for the torque converter and all internal passages being emptied.
- The service fill capacity for the automatic transaxle is 3.75 liters across the 1.8, 2.0, and 2.8 V6 configurations, representing the amount needed when fluid is changed without a full teardown.
- The difference between the 5.75-liter overhaul figure and the 3.75-liter service fill figure — a gap of 2.0 liters — reflects the volume of fluid that remains trapped in the torque converter during a standard drain-and-fill service.
- All three engine variants share identical automatic transaxle fluid capacities, indicating a common transmission unit was used across the 1.8, 2.0, and 2.8 V6 applications in the Firenza lineup.
- The 2.8 V6 configuration covers model years 1985-1987, making it the shortest production span among the three engine variants listed for the automatic transaxle.
- The 1.8-liter variant spans 1982-1986, while the 2.0-liter variant spans 1982-1988, meaning the two four-cylinder options overlapped for several model years with no difference in transaxle fluid specifications.
- All listed specifications apply under normal use conditions, as no severe-use or alternative service interval data is present for any of the three configurations.