2019 Cadillac CT6 Oil Type & Capacity
The 2019 Cadillac CT6 oil type depends on the engine: the 2.0L takes 0W-20 (5.28 quarts qt with filter); the 3.0L takes 5W-30 (6.0 quarts qt with filter); the 3.6L takes 5W-30 (6.0 quarts qt with filter); the 4.2L takes 0W-40 (9.0 quarts qt with filter); the Sport takes 5W-30 (6.0 quarts qt with filter); the V takes 0W-40 (9.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 2.0L: 0W-20, 5.28 quarts with filter
- 2.0L: 0W-20, 5.28 quarts with filter
- 3.0L: 5W-30, 6.0 quarts with filter
- 3.6L: 5W-30, 6.0 quarts with filter
- 3.6L: 5W-30, 6.0 quarts with filter
- 4.2L: 0W-40, 9.0 quarts with filter
- Sport: 5W-30, 6.0 quarts with filter
- V: 0W-40, 9.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 2.0L — Luxury, 2.0L Eng VIN K, 2.0L Eng | API - SAE 0W-20 | 5.28 QTS. | — | ACDelco dexos1 full synthetic engine oil. |
| 2.0L — Premium Luxury, 2.0L Eng VIN K, 2.0L Eng | API - SAE 0W-20 | 5.28 QTS. | — | ACDelco dexos1 full synthetic engine oil. |
| 3.0L — 3.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | ACDelco dexos1 full synthetic engine oil. |
| 3.6L — Luxury, 3.6L Eng VIN S, 3.6L Eng | API - SAE 5W-30 | 6.00 QTS. | — | ACDelco dexos1 full synthetic engine oil. |
| 3.6L — Premium Luxury, 3.6L Eng VIN S, 3.6L Eng | API - SAE 5W-30 | 6.00 QTS. | — | ACDelco dexos1 full synthetic engine oil. |
| 4.2L — 4.2L Eng | API - SAE 0W-40 | 9.00 QTS. | — | ACDelco dexos 2 engine oil. |
| Sport — 3.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | ACDelco dexos1 full synthetic engine oil. |
| V — 4.2L Eng | API - SAE 0W-40 | 9.00 QTS. | — | ACDelco dexos 2 engine oil. |
More factory specs & repair guides for your CT6
🛞 2019 Cadillac CT6 Tire Size & Pressure →🌧️ 2019 Cadillac CT6 Wiper Blade Sizes →💡 2019 Cadillac CT6 Light Bulb Sizes →📖 2019 Cadillac CT6 Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
9.1 quarts (8.61 L) — 50/50 mixture of DEX-COOL and clean, drinkable water. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Frequently asked questions
What type of oil does a 2019 Cadillac CT6 take?
It depends on the engine: 2.0L uses 0W-20; 3.0L uses 5W-30; 3.6L uses 5W-30; 4.2L uses 0W-40; Sport uses 5W-30; V uses 0W-40.
What is the oil capacity of a 2019 Cadillac CT6?
Oil capacity depends on the engine: 2.0L holds 5.28 quarts with filter; 3.0L holds 6.0 quarts with filter; 3.6L holds 6.0 quarts with filter; 4.2L holds 9.0 quarts with filter; Sport holds 6.0 quarts with filter; V holds 9.0 quarts with filter.
How often should I change the oil in my 2019 Cadillac CT6?
Most 2019 Cadillac CT6 owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Cadillac recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2019 Cadillac CT6?
Yes. 0W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2019 Cadillac CT6. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.