Audi A6 Gas Tank Size (2002 - 2025): Fuel Tank Capacity Data

The Audi A6 gas tank sizes range from 18.5 gallons to 21.7 gallons as specified in our data below, organized by trim, option package, and model year.

The gas tank size of the Audi A6, when combined with its fuel mileage, gives the A6 the following ranges depending on the model year and options:

• City range from 314 miles to 495 miles
• Highway range from 444 miles to 752 miles

Check out the Gas Tank Size specifications for other makes and models.

2025 Audi A6 Gas Tank Size

The 2025 Audi A6 gas tank size is 19.3 gallons.

On a full tank of fuel, the 2025 Audi A6 has the following ranges depending on the trim level:

• City range from 425 miles to 463 miles
• Highway range from 579 miles to 598 miles

2024 Audi A6 Gas Tank Size

The 2024 Audi A6 gas tank size is 19.3 gallons.

On a full tank of fuel, the 2024 Audi A6 has the following ranges depending on the trim level:

• City range from 425 miles to 444 miles
• Highway range from 579 miles to 637 miles

2023 Audi A6 Gas Tank Size

The 2023 Audi A6 gas tank size is 19.0 gallons.

On a full tank of fuel, the 2023 Audi A6 has the following ranges depending on the trim level:

• City range from 399 miles to 456 miles
• Highway range from 570 miles to 589 miles

2022 Audi A6 Gas Tank Size

The 2022 Audi A6 gas tank size is 19.0 gallons.

On a full tank of fuel, the 2022 Audi A6 has the following ranges depending on the trim level:

• City range from 399 miles to 437 miles
• Highway range from 570 miles to 608 miles

2021 Audi A6 Gas Tank Size

The 2021 Audi A6 gas tank size is 19.0 gallons.

On a full tank of fuel, the 2021 Audi A6 has the following ranges depending on the trim level:

• City range from 418 miles to 437 miles
• Highway range from 551 miles to 589 miles

2020 Audi A6 Gas Tank Size

The 2020 Audi A6 gas tank size is 19.3 gallons.

On a full tank of fuel, the 2020 Audi A6 has the following ranges depending on the trim level:

• City range from 424 miles to 463 miles
• Highway range from 559 miles to 617 miles

2019 Audi A6 Gas Tank Size

The 2019 Audi A6 gas tank size is 19.3 gallons.

On a full tank of fuel, the 2019 Audi A6 has the following ranges depending on the trim level:

• City range from 424 miles to 463 miles
• Highway range from 559 miles to 617 miles

2018 Audi A6 Gas Tank Size

The 2018 Audi A6 gas tank size is 19.8 gallons.

On a full tank of fuel, the 2018 Audi A6 has the following ranges depending on the trim level:

• City range from 396 miles to 495 miles
• Highway range from 574 miles to 673 miles

2017 Audi A6 Gas Tank Size

The 2017 Audi A6 gas tank size is 19.8 gallons.

On a full tank of fuel, the 2017 Audi A6 has the following ranges depending on the trim level:

• City range from 415 miles to 475 miles
• Highway range from 574 miles to 673 miles

2016 Audi A6 Gas Tank Size

The 2016 Audi A6 gas tank sizes range between 19.2 and 19.8 gallons depending on the trim level and model options.

On a full tank of fuel, the 2016 Audi A6 has the following ranges depending on the trim level:

• City range from 396 miles to 480 miles
• Highway range from 574 miles to 729 miles

2015 Audi A6 Gas Tank Size

The 2015 Audi A6 gas tank sizes range between 19.2 and 19.8 gallons depending on the trim level and model options.

On a full tank of fuel, the 2015 Audi A6 has the following ranges depending on the trim level:

• City range from 356 miles to 495 miles
• Highway range from 534 miles to 729 miles

2014 Audi A6 Gas Tank Size

The 2014 Audi A6 gas tank size is 19.8 gallons.

On a full tank of fuel, the 2014 Audi A6 has the following ranges depending on the trim level:

• City range from 356 miles to 495 miles
• Highway range from 534 miles to 752 miles

2013 Audi A6 Gas Tank Size

The 2013 Audi A6 gas tank size is 19.8 gallons.

On a full tank of fuel, the 2013 Audi A6 has the following ranges depending on the trim level:

• City range from 356 miles to 495 miles
• Highway range from 534 miles to 653 miles

2012 Audi A6 Gas Tank Size

The 2012 Audi A6 gas tank size is 19.8 gallons.

On a full tank of fuel, the 2012 Audi A6 has the following ranges depending on the trim level:

• City range from 376 miles to 495 miles
• Highway range from 554 miles to 653 miles

2011 Audi A6 Gas Tank Size

The 2011 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2011 Audi A6 has the following ranges depending on the trim level:

• City range from 337 miles to 379 miles
• Highway range from 485 miles to 590 miles

2010 Audi A6 Gas Tank Size

The 2010 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2010 Audi A6 has the following ranges depending on the trim level:

• City range from 337 miles to 379 miles
• Highway range from 485 miles to 590 miles

2009 Audi A6 Gas Tank Size

The 2009 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2009 Audi A6 has the following ranges depending on the trim level:

• City range from 337 miles to 379 miles
• Highway range from 485 miles to 569 miles

2008 Audi A6 Gas Tank Size

The 2008 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2008 Audi A6 has the following ranges depending on the trim level:

• City range from 337 miles to 379 miles
• Highway range from 485 miles to 569 miles

2007 Audi A6 Gas Tank Size

The 2007 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2007 Audi A6 has the following ranges depending on the trim level:

• City range from 379 miles to 443 miles
• Highway range from 527 miles to 611 miles

2006 Audi A6 Gas Tank Size

The 2006 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2006 Audi A6 has the following ranges depending on the trim level:

• City range from 358 miles to 443 miles
• Highway range from 485 miles to 611 miles

2005 Audi A6 Gas Tank Size

The 2005 Audi A6 gas tank size is 21.1 gallons.

On a full tank of fuel, the 2005 Audi A6 has the following ranges depending on the trim level:

• City range from 358 miles to 400 miles
• Highway range from 485 miles to 548 miles

2004 Audi A6 Gas Tank Size

The 2004 Audi A6 gas tank sizes range between 18.5 and 21.7 gallons depending on the trim level and model options.

On a full tank of fuel, the 2004 Audi A6 has the following ranges depending on the trim level:

• City range from 333 miles to 370 miles
• Highway range from 462 miles to 520 miles

2003 Audi A6 Gas Tank Size

The 2003 Audi A6 gas tank sizes range between 18.5 and 21.7 gallons depending on the trim level and model options.

On a full tank of fuel, the 2003 Audi A6 has the following ranges depending on the trim level:

• City range from 333 miles to 370 miles
• Highway range from 462 miles to 542 miles

2002 Audi A6 Gas Tank Size

The 2002 Audi A6 gas tank sizes range between 18.5 and 21.7 gallons depending on the trim level and model options.

On a full tank of fuel, the 2002 Audi A6 has the following ranges depending on the trim level:

• City range from 314 miles to 368 miles
• Highway range from 444 miles to 542 miles