Cadillac CT4 Oil Type & Capacity
GarageDex's oil-spec data shows the Cadillac CT4 takes 0W-20 or 5W-30 engine oil, about 5.3-7 qt with a filter change, on 2026 models. Older ones use the same grade but hold a different amount - 2025 models take 5.3-7 qt - so check your year in the table below.
Oil by model year
| Model years | Oil type | Capacity | Buy |
|---|---|---|---|
| 2026 | 0W-20 / 5W-30 | 5.3-7 qt | Shop 0W-20Shop 5W-30 |
| 2025 | 0W-20 / 5W-30 | 5.3-7 qt | Shop 0W-20Shop 5W-30 |
| 2024 | 0W-20 / 5W-30 | 5.3-7 qt | Shop 0W-20Shop 5W-30 |
| 2022-2023 | 0W-20 / 5W-30 | 5.3-7 qt | Shop 0W-20Shop 5W-30 |
| 2020-2021 | 0W-20 / 5W-30 | 5.3-6 qt | Shop 0W-20Shop 5W-30 |
Capacity is with a filter change and can vary by engine - open your exact year below for the per-engine figures and our sources. Shop links go to Amazon, and we may earn a commission at no extra cost to you.
Every CT4 year
Frequently asked
What kind of oil does a Cadillac CT4 take?
GarageDex's oil-spec data shows the Cadillac CT4 takes 0W-20 or 5W-30 engine oil, about 5.3-7 qt with a filter change, on 2026 models. Older ones use the same grade but hold a different amount - 2025 models take 5.3-7 qt - so check your year in the table below.
How many quarts of oil does a Cadillac CT4 take?
About 5.3-7 qt with a filter change on 2026 models, and 5.3-7 qt on 2025 models. Capacity varies by engine, so check your exact year for the per-engine figure - and finish on the dipstick rather than pouring in the full amount.
Does the oil type change by year on the Cadillac CT4?
Yes. We record 5 different factory specs across the years we cover - 2026: 0W-20/5W-30; 2025: 0W-20/5W-30; 2024: 0W-20/5W-30. Use the table above and confirm against your owner's manual.
Sources. The oil grade and capacity for 7 of 7 model years is checked against a cited source, most often CarSpecFinder - Cadillac CT4 oil, AMSOIL lookup guide - 2026 Cadillac CT4, 2.0L 4-cyl turbo (LSY) and AMSOIL lookup guide - 2026 Cadillac CT4, 2.7L 4-cyl turbo (L3B). Each year page lists its own sources.
Last verified 2026-06-21. Maintained by Matan B., who runs GarageDex. How we verify.