Audi S6 MPG & Fuel Economy
The 2025 Audi S6 gets up to 22 MPG combined (19 city / 27 highway) in EPA testing.
Latest model year (2025):
The Audi S6 gets up to 22 MPG combined (19 city / 27 highway) in the Auto (S8), 6 cyl, 2.9 L trim.
Audi S6 MPG — All Years
| Year | Trim | Engine | Fuel | City (MPG) | Hwy (MPG) | Combined (MPG) |
|---|---|---|---|---|---|---|
| 2025 | Auto (S8), 6 cyl, 2.9 L | 6 2.9L | Premium Gasoline | 19 | 27 | 22 |
| 2024 | Auto (S8), 6 cyl, 2.9 L | 6 2.9L | Premium Gasoline | 19 | 26 | 22 |
| 2023 | Auto (S8), 6 cyl, 2.9 L | 6 2.9L | Premium Gasoline | 19 | 26 | 22 |
| 2022 | Auto (S8), 6 cyl, 2.9 L | 6 2.9L | Premium Gasoline | 18 | 28 | 22 |
| 2021 | Auto (S8), 6 cyl, 2.9 L | 6 2.9L | Premium Gasoline | 18 | 28 | 22 |
| 2020 | Auto (S8), 6 cyl, 2.9 L | 6 2.9L | Premium Gasoline | 18 | 28 | 22 |
| 2018 | Auto (AM-S7), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 16 | 24 | 18 |
| 2017 | Auto (AM-S7), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 18 | 27 | 21 |
| 2016 | Auto (AM-S7), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 18 | 27 | 21 |
| 2015 | Auto (AM-S7), 8 cyl, 4.0 L | 8 4.0L | Premium Gasoline | 17 | 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 S6 MPG FAQ
What is the MPG of the Audi S6?
The Audi S6 gets up to 22 MPG combined (19 city / 27 highway) in the 2025 model year. Fuel economy varies by engine and trim — see the full table above for details.
Which Audi S6 trim has the best fuel economy?
The Auto (S8), 6 cyl, 2.9 L trim offers the best combined fuel economy at 22 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.