2019 Buick LaCrosse Oil Type & Capacity
The 2019 Buick LaCrosse oil type depends on the engine: the 2.5L takes 5W-20 (5.0 quarts qt with filter); the 3.6L takes 5W-30 (6.0 quarts qt with filter); the Avenir, AWD takes 5W-30 (6.0 quarts qt with filter); the Avenir, FWD takes 5W-30 (6.0 quarts qt with filter); the Base takes 5W-20 (5.0 quarts qt with filter); the Sport Touring takes 5W-30 (6.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 2.5L: 5W-20, 5.0 quarts with filter
- 2.5L: 5W-20, 5.0 quarts with filter
- 2.5L: 5W-20, 5.0 quarts with filter
- 3.6L: 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
- 3.6L: 5W-30, 6.0 quarts with filter
- 3.6L: 5W-30, 6.0 quarts with filter
- Avenir, AWD: 5W-30, 6.0 quarts with filter
- Avenir, FWD: 5W-30, 6.0 quarts with filter
- Base: 5W-20, 5.0 quarts with filter
- Sport Touring: 5W-30, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 2.5L — Essence, 2.5L Eng VIN Z, 2.5L Eng | API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative. | 5.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 2.5L — Preferred, 2.5L Eng VIN Z, 2.5L Eng | API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative. | 5.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 2.5L — Premium, 2.5L Eng VIN Z, 2.5L Eng | API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative. | 5.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 3.6L — Essence, 3.6L Eng VIN S, AWD, 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 3.6L — Essence, 3.6L Eng VIN S, FWD, 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 3.6L — Preferred, 3.6L Eng VIN S, 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 3.6L — Premium, 3.6L Eng VIN S, AWD, 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| 3.6L — Premium, 3.6L Eng VIN S, FWD, 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| Avenir, AWD — 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| Avenir, FWD — 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| Base — 2.5L Eng | API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative. | 5.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
| Sport Touring — 3.6L Eng | API - SAE 5W-30. SAE 0W-30 oil maybe used in areas of extreme cold temperatures. | 6.00 QTS. | — | Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. |
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More factory specs & repair guides for your LaCrosse
🛞 2019 Buick LaCrosse Tire Size & Pressure →🌧️ 2019 Buick LaCrosse Wiper Blade Sizes →💡 2019 Buick LaCrosse Light Bulb Sizes →📖 2019 Buick LaCrosse Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
9.7 quarts (9.17 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 Buick LaCrosse take?
It depends on the engine: 2.5L uses 5W-20; 3.6L uses 5W-30; Avenir, AWD uses 5W-30; Avenir, FWD uses 5W-30; Base uses 5W-20; Sport Touring uses 5W-30.
What is the oil capacity of a 2019 Buick LaCrosse?
Oil capacity depends on the engine: 2.5L holds 5.0 quarts with filter; 3.6L holds 6.0 quarts with filter; Avenir, AWD holds 6.0 quarts with filter; Avenir, FWD holds 6.0 quarts with filter; Base holds 5.0 quarts with filter; Sport Touring holds 6.0 quarts with filter.
How often should I change the oil in my 2019 Buick LaCrosse?
Most 2019 Buick LaCrosse 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 — Buick recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2019 Buick LaCrosse?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2019 Buick LaCrosse. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.