Audi S6 Gas Tank Size & Fuel Capacity by Year
19.3–21.7gal · 73–82 L
Across 20 model years (1995–2025), the Audi S6 has used tanks from 19.3–21.7 gallons. The 2025 model holds 19.3 gallons.
Pick your model year
How the tank changed over the years
Audi S6 tank size by generation
Model years with the same tank sizes, grouped. A change usually marks a new generation or a redesign.
| Model years | Tank | Liters |
|---|---|---|
| 2020–2025 | 19.3 gallons | 73 L |
| 2013–2018 | 19.8 gallons | 75 L |
| 2007–2011 | 21.1 gallons | 80 L |
| 2002–2003 | 21.7 gallons | 82 L |
| 1995 | 21.1 gallons | 80 L |
Audi S6 tank size by year
| Year | Tank | Liters | Best highway range | Trims |
|---|---|---|---|---|
| 2025 Audi S6 | 19.3 gallons | 73 L | 521 mi | 3 |
| 2024 Audi S6 | 19.3 gallons | 73 L | 502 mi | 3 |
| 2023 Audi S6 | 19.3 gallons | 73 L | 502 mi | 3 |
| 2022 Audi S6 | 19.3 gallons | 73 L | 540 mi | 2 |
| 2021 Audi S6 | 19.3 gallons | 73 L | 540 mi | 2 |
| 2020 Audi S6 | 19.3 gallons | 73 L | 540 mi | 2 |
| 2018 Audi S6 | 19.8 gallons | 75 L | 475 mi | 2 |
| 2017 Audi S6 | 19.8 gallons | 75 L | 535 mi | 2 |
| 2016 Audi S6 | 19.8 gallons | 75 L | 535 mi | 2 |
| 2015 Audi S6 | 19.8 gallons | 75 L | 535 mi | 1 |
| 2014 Audi S6 | 19.8 gallons | 75 L | 535 mi | 1 |
| 2013 Audi S6 | 19.8 gallons | 75 L | 535 mi | 1 |
| 2011 Audi S6 | 21.1 gallons | 80 L | 443 mi | 1 |
| 2010 Audi S6 | 21.1 gallons | 80 L | 401 mi | 1 |
| 2009 Audi S6 | 21.1 gallons | 80 L | 401 mi | 1 |
| 2008 Audi S6 | 21.1 gallons | 80 L | 401 mi | 1 |
| 2007 Audi S6 | 21.1 gallons | 80 L | 401 mi | 1 |
| 2003 Audi S6 | 21.7 gallons | 82 L | 412 mi | 1 |
| 2002 Audi S6 | 21.7 gallons | 82 L | 412 mi | 1 |
| 1995 Audi S6 | 21.1 gallons | 80 L | 464 mi | 2 |
Audi S6 fuel system recalls by year
NHTSA lists fuel-system recalls for 5 Audi S6 model years. Each year's page has the details, the risk and the free remedy.
Frequently asked questions
What size gas tank does the Audi S6 have?
The 2025 Audi S6 holds 19.3 gallons. Older years range from 19.3–21.7 gallons; the table has every year.
Has the tank size changed over the years?
Yes. The largest tank changed in 2020, 2013, 2007, 2002.