Audi S8 MPG & Fuel Economy
The 2027 Audi S8 gets up to 20 MPG combined (16 city / 27 highway) in EPA testing.
Latest model year (2027):
The Audi S8 gets up to 18 MPG combined (15 city / 24 highway) in the Auto (S8), 8 cyl, 4.0 L trim.
Audi S8 MPG — All Years
| Year | Trim | Engine | Fuel | City (MPG) | Hwy (MPG) | Combined (MPG) |
|---|---|---|---|---|---|---|
| 2027 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 24 | 18 |
| 2026 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 24 | 18 |
| 2025 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 24 | 18 |
| 2024 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 24 | 18 |
| 2023 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 23 | 18 |
| 2022 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 14 | 23 | 17 |
| 2021 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 13 | 22 | 16 |
| 2020 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 13 | 22 | 16 |
| 2018 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 14 | 24 | 18 |
| 2017 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 24 | 18 |
| 2016 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 15 | 25 | 18 |
| 2015 | Auto (S8), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 16 | 27 | 20 |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Audi S8 MPG FAQ
What is the MPG of the Audi S8?
The Audi S8 gets up to 20 MPG combined (16 city / 27 highway) in the 2027 model year. Fuel economy varies by engine and trim — see the full table above for details.
Which Audi S8 trim has the best fuel economy?
The Auto (S8), 8 cyl, 4.0 L trim offers the best combined fuel economy at 20 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.