Audi A6 quattro
25.5 MPG The 2025 Audi A6 quattro is EPA-rated at 25.5 MPG combined (23 city / 30.5 highway). Over 15,000 miles a year that is about 588 gallons, $1882 a year in fuel, or $0.125 per mile at $3.20/gal.
Across its full 1995–2025 run it averages 21.5 MPG, improving by 7.5 MPG over 31 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 | $0.098 | $980 | $1471 | $1961 |
| $3.00/gal | $0.118 | $1176 | $1765 | $2353 |
| $3.20/gal | $0.125 | $1255 | $1882 | $2510 |
| $3.50/gal | $0.137 | $1373 | $2059 | $2745 |
| $4.00/gal | $0.157 | $1569 | $2353 | $3137 |
| $4.50/gal | $0.176 | $1765 | $2647 | $3529 |
| $5.00/gal | $0.196 | $1961 | $2941 | $3922 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2025 | 25.5 MPG | 23 | 30.5 | $3025 | 348 | 2 |
| 2024 | 25.5 MPG | 22.5 | 31.5 | $3025 | 348 | 2 |
| 2023 | 25.5 MPG | 22.5 | 30.5 | $3025 | 348 | 2 |
| 2022 | 25 MPG | 22 | 31 | $3075 | 348 | 2 |
| 2021 | 25 MPG | 22.5 | 30 | $3075 | 353 | 2 |
| 2020 | 25.5 MPG | 23 | 30.5 | $3025 | 347 | 2 |
| 2019 | 26 MPG | 23 | 30.5 | $2975 | 345 | 2 |
| 2018 | 24.5 MPG | 21 | 30 | $3150 | 363 | 2 |
| 2017 | 24.5 MPG | 21.5 | 30 | $3150 | 365 | 2 |
| 2016 | 26.3 MPG | 22.3 | 33 | $2967 | 354 | 3 |
| 2015 | 24.3 MPG | 20.7 | 31.3 | $3233 | 383 | 3 |
| 2014 | 24.3 MPG | 20.7 | 31.3 | $3233 | 383 | 3 |
| 2013 | 22.5 MPG | 19 | 28.5 | $3425 | 394 | 2 |
| 2012 | 22 MPG | 19 | 28 | $3500 | 404 | 1 |
| 2011 | 20 MPG | 17 | 25 | $3850 | 445 | 2 |
| 2010 | 19.5 MPG | 17 | 24.5 | $3975 | 458 | 2 |
| 2009 | 19.5 MPG | 17 | 24.5 | $3975 | 458 | 2 |
| 2008 | 19 MPG | 16.5 | 24 | $4075 | 469 | 2 |
| 2007 | 19 MPG | 16.5 | 24 | $4075 | 469 | 2 |
| 2006 | 19 MPG | 16 | 23 | $4075 | 469 | 2 |
| 2005 | 19 MPG | 17 | 24 | $4050 | 468 | 1 |
| 2004 | 18.8 MPG | 15.8 | 22.8 | $4113 | 474 | 4 |
| 2003 | 18.8 MPG | 15.8 | 23.3 | $4113 | 474 | 4 |
| 2002 | 18 MPG | 15.3 | 22.8 | $4300 | 494 | 4 |
| 2001 | 18 MPG | 15.3 | 22.3 | $4300 | 494 | 4 |
| 2000 | 18 MPG | 15.2 | 22 | $4300 | 494 | 5 |
| 1999 | 18 MPG | 15 | 24 | $4300 | 494 | 1 |
| 1998 | 18 MPG | 15 | 24 | $4300 | 494 | 1 |
| 1997 | 19 MPG | 17 | 22 | $4050 | 468 | 1 |
| 1996 | 19 MPG | 17 | 22 | $4050 | 468 | 1 |
| 1995 | 18 MPG | 16 | 21 | $3450 | 494 | 2 |
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 261 midsize cars models tracked here, the Audi A6 quattro ranks 102 on current figures, against a class average of 27.2 MPG.
Closest more-efficient alternatives in the same class: Chrysler 200 (25.7), Alfa Romeo Giulia AWD (26), BMW 528i xDrive (26), BMW 540i xDrive (26), BMW ActiveHybrid 5 (26).
Tailpipe CO₂ is rated at 348 grams per mile, which works out to roughly 5.2 tonnes a year at 15,000 miles.
Questions
What MPG does the Audi A6 quattro get?
The 2025 Audi A6 quattro is rated at 25.5 MPG combined by the EPA — 23 city and 30.5 highway. Across all 31 model years in the database it averages 21.5 MPG, ranging from 18 to 30 depending on year and trim.
How much does a Audi A6 quattro cost in fuel per year?
At 25.5 MPG and 15,000 miles a year, it burns about 588 gallons — roughly $1882 a year with fuel at $3.20 a gallon, or $0.125 per mile. The EPA's own published annual figure for the 2025 model is $3025.
Has the Audi A6 quattro become more efficient over time?
Yes. It has gone from 18 MPG in 1995 to 25.5 in 2025 — an improvement of 7.5 MPG, or 42% across 31 model years.
Is the Audi A6 quattro efficient for its class?
It ranks 102 of 261 in the Midsize Cars class on current figures, against a class average of 27.2 MPG. That is 1.7 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.