- Newest year: 2018
- Gas
- Midsize cars
2013-2018 Audi S6 MPG & Fuel Cost
6 model years · 18–21 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 midsize car configurations, MY2018. Ranked against all rated configurations, not sales-weighted.
2013-2018 Audi S6 at a glance
The 2013-2018 Audi S6 covers 6 model years in the EPA database (6 configurations in all), rated 18–21 MPG combined. The newest model year, 2018, costs about $4,360 a year to fuel for its most efficient version, the S6 4.0L 8-cyl turbo AWD (18 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2014, 2015, 2016, 2017 and 2018. The best combined rating in the generation, 21 MPG, was reached in 2016 and 2017.
2013-2018 Audi S6 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2018 | Gas | 18 MPG | $4,360 | Ratings changed |
| 2017 | Gas | 21 MPG | $3,850 | Ratings changed |
| 2016 | Gas | 21 MPG | $3,850 | Ratings changed |
| 2015 | Gas | 20 MPG | $3,980 | Ratings changed |
| 2014 | Gas | 20 MPG | $3,990 | Ratings changed |
| 2013 | Gas | 20 MPG | $3,980 | First year |
What the 2018 S6 4.0L 8-cyl turbo AWD costs to drive
Per month
$363
$4,360 a year ÷ 12
Per 25 miles
$7.27
Per 100 miles
$29.07
Five years
$21,800
5 × the yearly cost, prices held at today's level
vs the midsize car median
$1,430more a year
Class median $2,930 a year, MY2018
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2018 Audi S6 MPG
Versus 2017: The most efficient configuration moves from 21 to 18 MPG, down 3. Its annual cost goes from $3,850 to $4,360, $510 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S6 (Most efficient) | 4.0L 8-cyl turbo | AWD | 16 | 24 | 18 | $4,360 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2017 Audi S6 MPG
21 MPG · $3,850/yr
Versus 2016: The most efficient configuration stays at 21 MPG. Its annual cost stays at $3,850.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S6 (Most efficient) | 4.0L 8-cyl turbo | AWD | 18 | 27 | 21 | $3,850 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2016 Audi S6 MPG
21 MPG · $3,850/yr
Versus 2015: The most efficient configuration moves from 20 to 21 MPG, up 1. Its annual cost goes from $3,980 to $3,850, $130 less.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S6 (Most efficient) | 4.0L 8-cyl turbo | AWD | 18 | 27 | 21 | $3,850 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2015 Audi S6 MPG
20 MPG · $3,980/yr
Versus 2014: The most efficient configuration stays at 20 MPG. Its annual cost goes from $3,990 to $3,980, $10 less.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S6 (Most efficient) | 4.0L 8-cyl turbo | AWD | 17 | 27 | 20 | $3,980 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2014 Audi S6 MPG
20 MPG · $3,990/yr
Versus 2013: The most efficient configuration stays at 20 MPG. Its annual cost goes from $3,980 to $3,990, $10 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S6 (Most efficient) | 4.0L 8-cyl turbo | AWD | 17 | 27 | 20 | $3,990 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2013 Audi S6 MPG
20 MPG · $3,980/yr
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S6 (Most efficient) | 4.0L 8-cyl turbo | AWD | 17 | 27 | 20 | $3,980 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the S6 4.0L 8-cyl turbo AWD: $5,200 in California and $3,780 in Texas, a $1,420 difference.
- California $5,200
- Washington $4,890
- New York $4,300
- Florida $3,980
- Texas $3,780
Similar cars
Closest combined MPG among MY2018 midsize car models.
Generations
Frequently asked questions
What gas mileage does the 2013-2018 Audi S6 get?
EPA rates the 2013-2018 Audi S6 at 18–21 MPG combined across 6 configurations and 6 model years. The most efficient version, the 2017 S6 4.0L 8-cyl turbo AWD, is rated 21 MPG (18 city, 27 highway).
Which years had the best MPG in the 2013-2018 Audi S6?
The S6 4.0L 8-cyl turbo AWD reached the generation's best combined rating, 21 MPG, in 2016 and 2017. The lowest top rating, 18 MPG, was in 2018.
Did EPA ratings change during the 2013-2018 Audi S6?
Yes. Ratings changed in 2014, 2015, 2016, 2017 and 2018.
How does the 2013-2018 Audi S6 compare with the previous generation?
The previous generation (2010-2011 Audi S6) is rated 16 MPG combined and costs $4,900–$5,020 a year to fuel; the 2013-2018 model is rated 18–21 MPG and costs $3,850–$4,360 a year.
How much does it cost to fuel a 2018 Audi S6 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the S6 4.0L 8-cyl turbo AWD costs about $4,360 a year. Across all 1 configuration the cost runs $4,360 a year.
How much does it cost to drive a 2018 Audi S6 100 miles?
About $29.07 per 100 miles for the S6 4.0L 8-cyl turbo AWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2018 Audi S6 more efficient in the city or on the highway?
The S6 4.0L 8-cyl turbo AWD is rated 16 city and 24 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2018 Audi S6 compare with other midsize car configurations?
The S6 4.0L 8-cyl turbo AWD costs about $4,360 a year to fuel, $1,430 more than the class median of $2,930, and less than 1 of 10 midsize car configurations. The comparison covers all 205 rated midsize car configurations for MY2018, not weighted by sales.
Is the 2018 Audi S6 different from the 2017 model?
The most efficient configuration moves from 21 to 18 MPG, down 3. Its annual cost goes from $3,850 to $4,360, $510 more. EPA lists 1 configuration for 2018 against 1 configuration for 2017. See the 2017 Audi S6 for that year.