2018 GMC Acadia Oil Type & Capacity
The 2018 GMC Acadia oil type depends on the engine: the 2.5L takes 5W-30 (6.0 quarts qt with filter); 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 Denali, 4WD takes 5W-30 (6.0 quarts qt with filter); the Denali, FWD takes 5W-30 (6.0 quarts qt with filter); the SL takes 5W-20 (5.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 2.5L: 5W-30, 6.0 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
- Denali, 4WD: 5W-30, 6.0 quarts with filter
- Denali, FWD: 5W-30, 6.0 quarts with filter
- SL: 5W-20, 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 2.5L — SLE, 2.5L Eng VIN A, 4WD, 2.5L Eng,4WD | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| 2.5L — SLE, 2.5L Eng VIN A, FWD, 2.5L Eng,FWD | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| 2.5L — SLT, 2.5L Eng VIN A, 2.5L Eng,FWD | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| 3.6L — SLT, 3.6L Eng VIN S, 4WD, 3.6L Eng | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| 3.6L — SLT, 3.6L Eng VIN S, FWD, 3.6L Eng | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| 3.6L — SLE, 3.6L Eng VIN S, FWD, 3.6L Eng | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| 3.6L — SLE, 3.6L Eng VIN S, 4WD, 3.6L Eng | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| Denali, 4WD — 3.6L Eng | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| Denali, FWD — 3.6L Eng | API - SAE 5W-30 | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
| SL — 2.5L Eng,FWD | 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. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. If in an area of extreme cold, where the temperature falls below -20Deg.F (-29Deg.C), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. |
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More factory specs & repair guides for your Acadia
🛞 2018 GMC Acadia Tire Size & Pressure →🌧️ 2018 GMC Acadia Wiper Blade Sizes →💡 2018 GMC Acadia Light Bulb Sizes →📖 2018 GMC Acadia 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 2018 GMC Acadia take?
It depends on the engine: 2.5L uses 5W-30; 2.5L uses 5W-20; 3.6L uses 5W-30; Denali, 4WD uses 5W-30; Denali, FWD uses 5W-30; SL uses 5W-20.
What is the oil capacity of a 2018 GMC Acadia?
Oil capacity depends on the engine: 2.5L holds 6.0 quarts with filter; 2.5L holds 5.0 quarts with filter; 3.6L holds 6.0 quarts with filter; Denali, 4WD holds 6.0 quarts with filter; Denali, FWD holds 6.0 quarts with filter; SL holds 5.0 quarts with filter.
How often should I change the oil in my 2018 GMC Acadia?
Most 2018 GMC Acadia 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 — GMC recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2018 GMC Acadia?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 GMC Acadia. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.
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