2015 Buick Regal Oil Type & Capacity
The 2015 Buick Regal oil type depends on the engine: the 2.0L takes 5W-30 (5.0 quarts with filter); the 2.0L takes 5W-30 (5.0 quarts with filter); the 2.0L takes 5W-30 (6.0 quarts with filter); the 2.0L takes 5W-30 (6.0 quarts with filter); the 2.0L takes 5W-30 (5.0 quarts with filter); the 2.4L takes 5W-30 (5.0 quarts with filter); the 2.4L takes 5W-30 (5.0 quarts with filter); the GS, AWD takes 5W-30 (6.0 quarts with filter); the GS, FWD, Automatic Trans takes 5W-30 (5.0 quarts with filter); the GS, FWD, Standard Trans takes 5W-30 (5.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 2.0L: 5W-30, 5.0 quarts with filter
- 2.0L: 5W-30, 5.0 quarts with filter
- 2.0L: 5W-30, 6.0 quarts with filter
- 2.0L: 5W-30, 6.0 quarts with filter
- 2.0L: 5W-30, 5.0 quarts with filter
- 2.4L: 5W-30, 5.0 quarts with filter
- 2.4L: 5W-30, 5.0 quarts with filter
- GS, AWD: 5W-30, 6.0 quarts with filter
- GS, FWD, Automatic Trans: 5W-30, 5.0 quarts with filter
- GS, FWD, Standard Trans: 5W-30, 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 2.0L — 2.0L Eng,FWD | API - SAE 5W-30 | 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. |
| 2.0L — 2.0L Eng,FWD | API - SAE 5W-30 | 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. |
| 2.0L — 2.0L Eng,AWD | 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. |
| 2.0L — 2.0L Eng,AWD | 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. |
| 2.0L — 2.0L Eng,FWD | API - SAE 5W-30 | 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. |
| 2.4L — 2.4L Eng | API - SAE 5W-30 | 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. |
| 2.4L — 2.4L Eng | API - SAE 5W-30 | 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. |
| GS, AWD — 2.0L Eng,AWD | 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. |
| GS, FWD, Automatic Trans — 2.0L Eng,FWD | API - SAE 5W-30 | 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. |
| GS, FWD, Standard Trans — 2.0L Eng,FWD | API - SAE 5W-30 | 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. |
Buy the right oil
Buy 5W-30 motor oil on Amazon2015 Buick Regal oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Regal
2015 Buick Regal factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
7.8 quarts (7.38 L) — 50/50 mixture of DEX-COOL and clean, drinkable water
Frequently asked questions
What type of oil does a 2015 Buick Regal take?
It depends on the engine: 2.0L uses 5W-30; 2.0L uses 5W-30; 2.0L uses 5W-30; 2.0L uses 5W-30; 2.0L uses 5W-30; 2.4L uses 5W-30; 2.4L uses 5W-30; GS, AWD uses 5W-30; GS, FWD, Automatic Trans uses 5W-30; GS, FWD, Standard Trans uses 5W-30.
How much oil does a 2015 Buick Regal take?
Capacity depends on the engine: 2.0L holds 5.0 quarts with filter; 2.0L holds 5.0 quarts with filter; 2.0L holds 6.0 quarts with filter; 2.0L holds 6.0 quarts with filter; 2.0L holds 5.0 quarts with filter; 2.4L holds 5.0 quarts with filter; 2.4L holds 5.0 quarts with filter; GS, AWD holds 6.0 quarts with filter; GS, FWD, Automatic Trans holds 5.0 quarts with filter; GS, FWD, Standard Trans holds 5.0 quarts with filter.
Can I use synthetic oil in my 2015 Buick Regal?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2015 Buick Regal. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.