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2012 Audi A6 sedan (C7)
Shown: 2012 Audi A6 sedan (C7). Photo: IFCAR, Public domain, via Wikimedia Commons
  • Newest year: 2018
  • Gas
  • Midsize cars

2012-2018 Audi A6 MPG & Fuel Cost

7 model years · 21–30 MPG combined

28 MPG
Combined
25 MPG
City
34 MPG
Highway
Annual fuel cost · A6 2.0L 4-cyl turbo FWD
$2,820

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 6 of 10 midsize car configurations, MY2018. Ranked against all rated configurations, not sales-weighted.

2012-2018 Audi A6 at a glance

The 2012-2018 Audi A6 covers 7 model years in the EPA database (23 configurations in all), rated 21–30 MPG combined. The newest model year, 2018, costs about $2,820 a year to fuel for its most efficient version, the A6 2.0L 4-cyl turbo FWD (28 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). Powertrains over the years: gas and diesel. EPA changed the ratings in 2013, 2014, 2015, 2016, 2017 and 2018. The best combined rating in the generation, 30 MPG, was reached in 2016.

2012-2018 Audi A6 by model year

2012-2018 Audi A6: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2018 Gas 23–28 MPG $2,820–$3,440 Ratings changed
2017 Gas 24–28 MPG $2,880–$3,410 Ratings changed
2016 Gas, Diesel 24–30 MPG $2,900–$3,420 Ratings changed
2015 Gas, Diesel 21–29 MPG $2,910–$3,740 Ratings changed
2014 Gas, Diesel 21–29 MPG $2,910–$3,740 Ratings changed
2013 Gas 21–28 MPG $2,910–$3,740 Ratings changed
2012 Gas 22–28 MPG $2,910–$3,670 First year

What the 2018 A6 2.0L 4-cyl turbo FWD costs to drive

Per month

$235

$2,820 a year ÷ 12

Per 25 miles

$4.70

Per 100 miles

$18.80

Five years

$14,100

5 × the yearly cost, prices held at today's level

vs the midsize car median

$110less 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 A6 MPG

Versus 2017: The most efficient configuration stays at 28 MPG. Its annual cost goes from $2,880 to $2,820, $60 less.

Gas · 2.0L, 3.0L
Combined
23–28 MPG
Per year
$2,820–$3,440

Gas configurations (3)

2018 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 25 34 28 $2,820
quattro 2.0L 4-cyl turbo 2.0L 4-cyl turbo AWD 22 31 26 $3,150
quattro 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 20 29 23 $3,440

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2017 Audi A6 MPG

24–28 MPG · $2,880–$3,410/yr

Versus 2016: The most efficient configuration moves from 30 to 28 MPG, down 2. Its annual cost goes from $3,190 to $2,880, $310 less.

Gas · 2.0L, 3.0L
Combined
24–28 MPG
Per year
$2,880–$3,410

Gas configurations (3)

2017 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 24 34 28 $2,880
quattro 2.0L 4-cyl turbo 2.0L 4-cyl turbo AWD 22 31 25 $3,210
quattro 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 21 29 24 $3,410

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2016 Audi A6 MPG

24–30 MPG · $2,900–$3,420/yr

Versus 2015: The most efficient configuration moves from 29 to 30 MPG, up 1. Its annual cost goes from $3,240 to $3,190, $50 less.

Gas · 2.0L, 3.0L
Combined
24–28 MPG
Per year
$2,900–$3,420
See gas configurations
Diesel · 3.0L
Combined
30 MPG
Per year
$3,190
See diesel configurations

Gas configurations (3)

2016 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 24 34 28 $2,900
quattro 2.0L 4-cyl turbo 2.0L 4-cyl turbo AWD 22 32 25 $3,170
quattro 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 20 29 24 $3,420

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (1)

2016 Audi A6 diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
quattro (Most efficient) 3.0L 6-cyl turbo AWD 25 38 30 $3,190

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2015 Audi A6 MPG

21–29 MPG · $2,910–$3,740/yr

Versus 2014: The most efficient configuration stays at 29 MPG. Its annual cost stays at $3,240.

Gas · 2.0L, 3.0L
Combined
21–28 MPG
Per year
$2,910–$3,740
See gas configurations
Diesel · 3.0L
Combined
29 MPG
Per year
$3,240
See diesel configurations

Gas configurations (3)

2015 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 25 33 28 $2,910
quattro 2.0L 4-cyl turbo 2.0L 4-cyl turbo AWD 20 29 23 $3,510
quattro 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 18 27 21 $3,740

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (1)

2015 Audi A6 diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
quattro (Most efficient) 3.0L 6-cyl turbo AWD 24 38 29 $3,240

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2014 Audi A6 MPG

21–29 MPG · $2,910–$3,740/yr

Versus 2013: The most efficient configuration moves from 28 to 29 MPG, up 1. Its annual cost goes from $2,910 to $3,240, $330 more.

Gas · 2.0L, 3.0L
Combined
21–28 MPG
Per year
$2,910–$3,740
See gas configurations
Diesel · 3.0L
Combined
29 MPG
Per year
$3,240
See diesel configurations

Gas configurations (3)

2014 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 25 33 28 $2,910
quattro 2.0L 4-cyl turbo 2.0L 4-cyl turbo AWD 20 29 23 $3,510
quattro 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 18 27 21 $3,740

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (1)

2014 Audi A6 diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
quattro (Most efficient) 3.0L 6-cyl turbo AWD 24 38 29 $3,240

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2013 Audi A6 MPG

21–28 MPG · $2,910–$3,740/yr

Versus 2012: The most efficient configuration stays at 28 MPG. Its annual cost stays at $2,910.

Gas · 2.0L, 3.0L
Combined
21–28 MPG
Per year
$2,910–$3,740

Gas configurations (3)

2013 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 25 33 28 $2,910
quattro 2.0L 4-cyl turbo 2.0L 4-cyl turbo AWD 20 30 24 $3,380
quattro 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 18 27 21 $3,740

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2012 Audi A6 MPG

22–28 MPG · $2,910–$3,670/yr
Gas · 2.0L, 3.0L
Combined
22–28 MPG
Per year
$2,910–$3,670

Gas configurations (2)

2012 Audi A6 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
A6 (Most efficient) 2.0L 4-cyl turbo FWD 25 33 28 $2,910
quattro 3.0L 6-cyl supercharged AWD 19 28 22 $3,670

2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the A6 2.0L 4-cyl turbo FWD: $3,360 in California and $2,450 in Texas, a $910 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2018 midsize car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2012-2018 Audi A6 get?

EPA rates the 2012-2018 Audi A6 at 21–30 MPG combined across 23 configurations and 7 model years. The most efficient version, the 2016 quattro 3.0L 6-cyl turbo AWD, is rated 30 MPG (25 city, 38 highway). By powertrain: Gas: 21–28 MPG; Diesel: 29–30 MPG.

Which years had the best MPG in the 2012-2018 Audi A6?

The quattro 3.0L 6-cyl turbo AWD reached the generation's best combined rating, 30 MPG, in 2016. The lowest top rating, 28 MPG, was in 2012, 2013, 2017 and 2018.

Did EPA ratings change during the 2012-2018 Audi A6?

Yes. Ratings changed in 2013, 2014, 2015, 2016, 2017 and 2018.

How does the 2012-2018 Audi A6 compare with the previous generation?

The previous generation (2005-2011 Audi A6) is rated 18–24 MPG combined and costs $3,310–$4,460 a year to fuel; the 2012-2018 model is rated 21–30 MPG and costs $2,820–$3,740 a year.

How much does it cost to fuel a 2018 Audi A6 per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the A6 2.0L 4-cyl turbo FWD costs about $2,820 a year. Across all 3 configurations the cost runs $2,820–$3,440 a year. That is a $620 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2018 Audi A6 100 miles?

About $18.80 per 100 miles for the A6 2.0L 4-cyl turbo FWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $18.80 and $22.93 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2018 Audi A6 more efficient in the city or on the highway?

The A6 2.0L 4-cyl turbo FWD is rated 25 city and 34 highway MPG, so it is more efficient on the highway, by 9 MPG.

How does the 2018 Audi A6 compare with other midsize car configurations?

The A6 2.0L 4-cyl turbo FWD costs about $2,820 a year to fuel, $110 less than the class median of $2,930, and less than 6 of 10 midsize car configurations. The comparison covers all 205 rated midsize car configurations for MY2018, not weighted by sales.

Is the 2018 Audi A6 different from the 2017 model?

The most efficient configuration stays at 28 MPG. Its annual cost goes from $2,880 to $2,820, $60 less. EPA lists 3 configurations for 2018 against 3 configurations for 2017. See the 2017 Audi A6 for that year.