Buick Regal, E2XX (USA / CAN)

Automatic transmission fluid capacity & service interval

Buick Regal, E2XX (USA / CAN) uses automatic transmission fluid with a capacity range of 5 to 9,5 liters. Service intervals require a change every 45000 miles. The data covers 8 configurations.

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

TypeSpecifications
Regal 2.0L Turbo AWD (2017-2020)
  • Use: Normal
  • Capacity 7,1 liter
  • Code: AF 50-8 (MRC) 8/1
Regal 2.0L Turbo AWD (2017-2020)
  • Use: Severe
  • Capacity 7,1 liter
  • Change 45000 miles
  • Code: AF 50-8 (MRC) 8/1
Regal 2.0L Turbo FWD (2017-2020)
  • Use: Normal
  • Capacity 8,5-9,5 liter (Overhaul capacity)
  • Capacity 5-6 liter (Service fill)
  • Code: 9T50 (M3D) 9/1
Regal 2.0L Turbo FWD (2017-2020)
  • Use: Severe
  • Capacity 8,5-9,5 liter (Overhaul capacity)
  • Capacity 5-6 liter (Service fill)
  • Change 45000 miles
  • Code: 9T50 (M3D) 9/1
Regal GS 3.6L V6 AWD (2017-2020)
  • Use: Normal
  • Capacity 8,5-9,5 liter (Overhaul capacity)
  • Capacity 5-6 liter (Service fill)
  • Code: 9T50 (M3T) 9/1
Regal GS 3.6L V6 AWD (2017-2020)
  • Use: Severe
  • Capacity 8,5-9,5 liter (Overhaul capacity)
  • Capacity 5-6 liter (Service fill)
  • Change 45000 miles
  • Code: 9T50 (M3T) 9/1
Regal TourX 2.0L Turbo AWD (2017-2020)
  • Use: Normal
  • Capacity 7,1 liter
  • Code: AF 50-8 (MRC) 8/1
Regal TourX 2.0L Turbo AWD (2017-2020)
  • Use: Severe
  • Capacity 7,1 liter
  • Change 45000 miles
  • Code: AF 50-8 (MRC) 8/1

Additional Notes

  • The Buick Regal 2.0L Turbo FWD automatic transaxle carries a service fill capacity of 5-6 liters, which represents the amount of fluid needed when draining and refilling during a routine service without fully disassembling the unit.
  • The overhaul capacity for the 2.0L Turbo FWD transaxle ranges from 8.5 to 9.5 liters, a figure that applies when the transmission is completely disassembled and all fluid passages are emptied before reassembly.
  • The Regal GS 3.6L V6 AWD shares the same 8.5-9.5 liter overhaul capacity and 5-6 liter service fill range as the 2.0L Turbo FWD, despite the difference in engine displacement and drivetrain configuration.
  • The 2.0L Turbo AWD transaxle, found in both the Regal sedan and Regal TourX wagon, carries a single stated capacity of 7.1 liters with no separate overhaul and service fill distinction.
  • A 7.1-liter capacity without a split service fill figure suggests the AWD transaxle specification reflects a total fill value rather than a partial drain-and-refill scenario.
  • Under severe use conditions, the 2.0L Turbo AWD transaxle in the Regal TourX carries the same 7.1-liter capacity as the standard Regal AWD variant, with a fluid change interval of 45,000 miles.
  • The severe-use change interval of 45,000 miles applies uniformly across all configurations in the 2017-2020 range, including the FWD, AWD, and GS variants.
  • No fluid change interval is listed under normal use conditions for any of the configurations, meaning a mileage-based service interval is only associated with the severe use designation in the specifications.

Other Systems