2026 · Midsize Car · Gas
2026 Audi A6 MPG & fuel economy
The 2026 Audi A6 is a midsize car with one EPA-rated configuration. The most efficient version returns 23 MPG combined (20 city / 29 highway) on premium gasoline. Among 31 midsize cars rated for 2026, it ranks 26th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2026 Audi A6's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 20 | 8.5 | 11.8 |
| Highway | 29 | 12.3 | 8.1 |
| Combined | 23 | 9.8 | 10.2 |
How it ranks among 2026 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
A6 MPG across model years
Full history →1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| AWD · 3.0L 6-cyl turbo · 7-speed dual-clutch A6 Sedan |
Gas | 20 MPG | 29 MPG | 23 MPG | — | $2,576 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 3.0L 6-cyl turbo
- Transmission
- 7-speed dual-clutch
- Drivetrain
- AWD
- Passenger volume
- 98 cu ft
- Cargo volume
- 13 cu ft
- Tailpipe CO₂
- 387 g/mi
- EPA fuel economy score
- 5/10
- EPA greenhouse gas score
- 5/10
2026 Audi A6 vs. rivals
Compare the 2026 A6
With any other car from any year, including other A6 model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 2026 Audi A6 Hybrid (24 MPG)
Frequently asked questions
What is the gas mileage of the 2026 Audi A6?
Up to 23 MPG combined (20 city / 29 highway).
What fuel does the 2026 Audi A6 use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2026 Audi A6?
The 2026 Audi A6's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.
How much does it cost to fuel the 2026 Audi A6 per year?
About $2,576 at 15,000 miles a year with $3.95/gal premium gas, or $17.17 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.