2025 Audi S8 mpg
Combined mpg, 4.0 TFSI AWD
18mpg
- 15 city, 24 highway.
- 8 mpg below the median of 68 sedans (2025).
12,000 miles a year. Gas $3.20.
| Trim | Engine | Drive | City mpg | Hwy mpg | Combined | Tank, gal | Miles per tank | Cost a year |
|---|---|---|---|---|---|---|---|---|
| 4.0 TFSI AWD | 4.0L 8cyl | AWD | 15 | 24 | 18 | 21.7 | 391 | $2,133 |
Fuel cost
4.0 TFSI AWD, 18 mpg combined.
- Per year
- $2,133
- Per month
- $178
- Per mile
- 17.8 cents
- Fill the tank
- $69.44
Trip cost
| Trip | Gallons | Cost |
|---|---|---|
| 100 miles | 4.2 | $13.33 |
| 300 miles | 12.5 | $40.00 |
| 500 miles | 20.8 | $66.67 |
| 1,000 miles | 41.7 | $133 |
Commute cost
- Per month
- $154
- Per year
- $1,849
- Miles a month
- 867
4.0 TFSI AWD. 20 miles each way, 5 days a week.
Is 18 mpg good? No. Beats 11% of 2026 cars.
MPG by year
Rivals
| Car | Cheapest trim | MPG or range | Compare |
|---|---|---|---|
| 2025 Audi S8 | 4.0 TFSI AWD | 18 mpg | |
| 2025 Audi e-tron GT | Premium Plus AWD | 85 MPGe | |
| 2025 Audi S e-tron GT | Premium Plus AWD | 300 mi range | |
| 2025 Audi RS 7 | performance AWD | 17 mpg | |
| 2025 BMW M5 | AWD | 14 mpg | Compare |
| 2025 Mercedes-Benz S-Class | S 500 4MATIC AWD | 24 mpg | Compare |
What this cannot tell you
EPA ratings. Your own mpg will differ.
Gas prices change by state and by week.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree