Audi RS 6 Avant
16 MPG The 2026 Audi RS 6 Avant is EPA-rated at 16 MPG combined (14 city / 21 highway). Over 15,000 miles a year that is about 938 gallons, $3000 a year in fuel, or $0.200 per mile at $3.20/gal.
Across its full 2021–2026 run it averages 16.8 MPG, falling by 1 MPG over 6 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.156 | $1563 | $2344 | $3125 |
| $3.00/gal | $0.188 | $1875 | $2813 | $3750 |
| $3.20/gal | $0.200 | $2000 | $3000 | $4000 |
| $3.50/gal | $0.219 | $2188 | $3281 | $4375 |
| $4.00/gal | $0.250 | $2500 | $3750 | $5000 |
| $4.50/gal | $0.281 | $2813 | $4219 | $5625 |
| $5.00/gal | $0.313 | $3125 | $4688 | $6250 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2026 | 16 MPG | 14 | 21 | $4800 | 545 | 1 |
| 2025 | 17 MPG | 14 | 21 | $4550 | 538 | 1 |
| 2024 | 17 MPG | 14 | 22 | $4550 | 533 | 1 |
| 2023 | 17 MPG | 14 | 21 | $4550 | 532 | 1 |
| 2022 | 17 MPG | 15 | 22 | $4550 | 514 | 1 |
| 2021 | 17 MPG | 15 | 22 | $4550 | 514 | 1 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 26 midsize station wagons models tracked here, the Audi RS 6 Avant ranks 24 on current figures, against a class average of 21.8 MPG.
Closest more-efficient alternatives in the same class: Lexus RX 300 (18), Lexus RX 300 4WD (18), Mercedes-Benz E63 AMG (wagon) (18), Volkswagen Passat Wagon 4motion (19), Mercedes-Benz E320 (Wagon) (20).
Tailpipe CO₂ is rated at 545 grams per mile, which works out to roughly 8.2 tonnes a year at 15,000 miles.
Questions
What MPG does the Audi RS 6 Avant get?
The 2026 Audi RS 6 Avant is rated at 16 MPG combined by the EPA — 14 city and 21 highway. Across all 6 model years in the database it averages 16.8 MPG, ranging from 16 to 17 depending on year and trim.
How much does a Audi RS 6 Avant cost in fuel per year?
At 16 MPG and 15,000 miles a year, it burns about 938 gallons — roughly $3000 a year with fuel at $3.20 a gallon, or $0.200 per mile. The EPA's own published annual figure for the 2026 model is $4800.
Has the Audi RS 6 Avant become more efficient over time?
No — it has actually gone backwards, from 17 MPG in 2021 to 16 in 2026. That usually reflects the model growing heavier, more powerful, or moving upmarket rather than the engineering getting worse.
Is the Audi RS 6 Avant efficient for its class?
It ranks 24 of 26 in the Midsize Station Wagons class on current figures, against a class average of 21.8 MPG. That is 5.8 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.