Does the 2025 BMW 8 Series need premium gas?
Yes. Premium.
$300extra a year
- Premium listed for the 840i RWD.
- All 15 trims list premium.
- Required or only recommended: the data does not say.
- 94% of 32 coupes (2025) list premium.
12,000 miles a year. Gas $3.20. Premium $0.60 more.
| Trim | Engine | Grade | Mpg | Regular, a year | Premium, a year |
|---|---|---|---|---|---|
| 840i Coupe RWD | 3.0L 6cyl | Premium | 24 | $1,600 | $1,900 |
| 840i Gran Coupe RWD | 3.0L 6cyl | Premium | 24 | $1,600 | $1,900 |
| 840i RWD | 3.0L 6cyl | Premium | 24 | $1,600 | $1,900 |
| 840i xDrive AWD | 3.0L 6cyl | Premium | 24 | $1,600 | $1,900 |
| 840i xDrive Coupe AWD | 3.0L | Premium | 24 | $1,600 | $1,900 |
| 840i xDrive Gran Coupe AWD | 3.0L 6cyl | Premium | 24 | $1,600 | $1,900 |
| 840i Convertible RWD | 3.0L 6cyl | Premium | 24 | $1,600 | $1,900 |
| 840i xDrive Convertible AWD | 3.0L | Premium | 24 | $1,600 | $1,900 |
| M850i xDrive AWD | 4.4L 8cyl | Premium | 19 | $2,021 | $2,400 |
| M850i xDrive Coupe AWD | 4.4L | Premium | 19 | $2,021 | $2,400 |
| M850i xDrive Gran Coupe AWD | 4.4L 8cyl | Premium | 19 | $2,021 | $2,400 |
| M850i xDrive Convertible AWD | 4.4L | Premium | 19 | $2,021 | $2,400 |
| Alpina B8 Gran Coupe AWD | 4.4L 8cyl | Premium | 19 | $2,021 | $2,400 |
| M8 Competition AWD | 4.4L 8cyl | Premium | 19 | $2,021 | $2,400 |
| M8 Competition Gran Coupe AWD | 4.4L 8cyl | Premium | 19 | $2,021 | $2,400 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2025 BMW 8 Series | 840i RWD | Premium |
| 2025 Lexus LC | LC 500 RWD | Premium |
| 2025 Lotus Emira | V6 RWD | Premium |
| 2025 BMW M4 | Coupe RWD | Premium |
What this cannot tell you
Check the fuel door or manual before you fill.
Gas prices and the premium gap change by state.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree