Buick Regal Sportback oil specs by year
The Buick Regal Sportback (2018–2020) uses 6 qt of 5W-30 oil across all 3 model years covered here for the primary engine. Select a year below for the full record with filter part numbers and source notes.
Multiple engine options: The Buick Regal Sportback was offered with 2 engine options across its history.
Open the exact year page and select your engine to see the correct capacity and viscosity for your vehicle.
| Year | Capacity | Oil type | Filter | Page |
|---|---|---|---|---|
| 2020 | 6 qt | 5W-30 | AMSOIL EA15K50; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2019 | 6 qt | 5W-30 | AMSOIL EA15K50; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2018 | 6 qt | 5W-30 | AMSOIL EA15K50; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
Buick Regal Sportback oil spec changes by year
Oil specs remained consistent across the 2018–2020 model years covered here. The primary engine uses 6 qt of 5W-30 throughout this range. Always open the exact year page and confirm the source notes before buying.
Capacity
6 qt
Same across all 3 listed years
Oil type
5W-30
Same across all 3 listed years
Filter brands
AMSOIL, Purolator, CHAMP / LUBER-FINER
In checked records — open year page for part numbers
Buick Regal Sportback oil — frequently asked questions
- What oil does the Buick Regal Sportback take?
- The Buick Regal Sportback takes 6 qt of 5W-30 oil across the 2018–2020 model years covered here. Always open the exact year page and confirm in your owner's manual before buying.
- Is the oil capacity the same for all Buick Regal Sportback years?
- Yes. All 3 Buick Regal Sportback model years covered here use 6 qt as the primary engine capacity. Confirm in your owner's manual before buying.
- Does the Buick Regal Sportback have different oil specs for different engines?
- Yes. The Buick Regal Sportback has been offered with multiple engine options (2.0L 4-Cyl Turbo, 3.6L V6). Each engine can have a different oil capacity and viscosity. Open the exact year page, select your engine, and confirm specs before buying.
- What oil filter fits the Buick Regal Sportback?
- The most recent checked year lists AMSOIL EA15K50; AMSOIL EA15K01; AMSOIL EA15K02 as a compatible oil filter for the Buick Regal Sportback. Filter part numbers can change across model years — open the exact year page for the source-checked part number for your year.
Look up a specific Buick Regal Sportback year
Select a model year to open the exact checked oil fitment record before ordering.