Cadillac CT6 Oil Capacity by Year
Newest year we have: the 2020 Cadillac CT6 manual lists 6.0 qt (3.6L V6 Engine) or 9.0 qt (4.2L V8 Engine). Across 2016–2020 it changes by year and version, so check yours below. Each year links to its owner's manual page.

| Year | Oil capacity | Source |
|---|---|---|
| 2020 | 6.0 qt ≈ 5.7 L 3.6L V6 Engine9.0 qt ≈ 8.5 L 4.2L V8 Engine | 2020 manual → |
| 2019 | 5.3 qt ≈ 5.0 L 2.0L L4 Engine6.0 qt ≈ 5.7 L 3.0L V6 Engine6.0 qt ≈ 5.7 L 3.6L V6 Engine9.0 qt ≈ 8.5 L 4.2L V8 Engine | 2019 manual → |
| 2018 | 5.0 qt ≈ 4.7 L 2.0L L4 Engine6.0 qt ≈ 5.7 L 3.0L V6 Engine6.0 qt ≈ 5.7 L 3.6L V6 Engine | 2018 manual → |
| 2017 | 5.0 qt ≈ 4.7 L 2.0L L4 Engine6.0 qt ≈ 5.7 L 3.0L V6 Twin Turbo Engine6.0 qt ≈ 5.7 L 3.6L V6 Engine | 2017 manual → |
| 2016 | 5.0 qt ≈ 4.7 L 2.0L L4 Engine6.0 qt ≈ 5.7 L 3.0L V6 Twin Turbo Engine6.5 qt ≈ 6.2 L 3.6L V6 Engine | 2016 manual → |
Years are the 2016–2020 model years we have the owner's manual for. Open a year to see every version and the page it's printed on.
Confirm with your own manual, dipstick or door-jamb label.
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