Buick Regal, E2XX (USA / CAN)
Transfer case fluid capacity & service interval
Buick Regal, E2XX (USA / CAN) requires transfer case fluid with a capacity of 0,65 liter. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Regal 2.0L Turbo AWD (2017-2020) |
|
| Regal GS 3.6L V6 AWD (2017-2020) |
|
| Regal TourX 2.0L Turbo AWD (2017-2020) |
|
Additional Notes
- The Buick Regal E2XX transfer case fluid capacity is 0.65 liter across all three available AWD configurations for the 2017-2020 model years.
- The 0.65 liter figure represents a service fill capacity for the transfer case unit, meaning the amount of fluid the transferbox holds during a standard fluid service rather than a full mechanical overhaul.
- The 2.0L Turbo AWD, the 3.6L V6 GS AWD, and the TourX 2.0L Turbo AWD all share an identical 0.65 liter transfer case capacity, indicating a common transferbox unit across the lineup regardless of engine displacement or body style.
- All three configurations carry a normal use condition designation, meaning the 0.65 liter capacity specification applies under standard operating conditions rather than severe-duty or first-change-only scenarios.