Audi A6 MPG and Fuel Economy
Audi have been manufacturing models of A6 for 23 years, with the latest vehicle in 2018 having a combined MPG of 28.
The estimated fuel cost for the 2018 Audi A6 is $2,650 per year.
Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
💵 Compared to an average vehicle over 5 years, you will spend $1,750 more on fuel driving a 2018 Audi A6.
🛢 The Audi A6 will consume roughly 11 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
💨 For every mile driven, the Audi A6 will emit 311 grams of CO2, which is about 4,665,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 223 trees would be needed to offset emissions from the Audi A6.
The table below is a complete list of the 23 Audi A6 fuel efficiency specifications we have data for.
Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.
| Vehicle | Combined MPG | Fuel Cost |
|---|---|---|
| 2018 Audi A6 | 28 | $2,650 |
| 2017 Audi A6 | 28 | $2,650 |
| 2016 Audi A6 | 28 | $2,650 |
| 2015 Audi A6 | 28 | $2,650 |
| 2014 Audi A6 | 28 | $2,650 |
| 2013 Audi A6 | 28 | $2,650 |
| 2012 Audi A6 | 28 | $2,650 |
| 2011 Audi A6 | 24 | $3,100 |
| 2010 Audi A6 | 22 | $3,350 |
| 2009 Audi A6 | 21 | $3,500 |
| 2008 Audi A6 | 21 | $3,500 |
| 2007 Audi A6 | 21 | $3,500 |
| 2006 Audi A6 | 21 | $3,500 |
| 2004 Audi A6 | 21 | $3,500 |
| 2003 Audi A6 | 21 | $3,500 |
| 2002 Audi A6 | 19 | $3,900 |
| 2001 Audi A6 | 18 | $4,100 |
| 2000 Audi A6 | 18 | $4,100 |
| 1999 Audi A6 | 19 | $3,900 |
| 1998 Audi A6 | 19 | $3,900 |
| 1997 Audi A6 | 19 | $3,900 |
| 1996 Audi A6 | 19 | $3,900 |
| 1995 Audi A6 | 19 | $3,300 |
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"Audi A6 MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/audi/a6.
"Audi A6 MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/audi/a6. Accessed January 3, 2026.
Audi A6 MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/audi/a6.