The Audi A6 allroad does 23.6 mpg combined (21 city, 28.6 highway), which works out to about $1,627 a year in fuel at $3.20 a gallon and 12,000 miles. Against other Hybrid cars it sits below the average of 29.8 mpg.
Every Audi A6 allroad engine, compared
The Audi A6 allroad was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3L 6-cyl Hybrid | 21 / 28.6 | 2020–2026 | $1,627 |
What that actually costs
The Audi A6 allroad burns a gallon every 23.6 miles, so 12,000 miles takes about 508 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.136 |
| Fuel per year | $1,627 |
| Fuel over five years | $8,135 |
| Against other Hybrid cars | +$338 a year |
| EPA's own estimate | $3,279 a year |
City or highway — who is this car for
The Audi A6 allroad gives up 7.6 mpg the moment you leave the motorway — 28.6 out there against 21 in town, a 36% drop worth $486 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 21 mpg | $1,829 a year if you only drive in town |
| Highway | 28.6 mpg | $1,343 a year if you mostly commute |
| Gap | +7.6 mpg (36%) | Wide — this car dislikes traffic |
How the A6 allroad changed over the years
The A6 allroad peaked in 2025 at 25 mpg (22 city, 30 highway) and was at its thirstiest in 2021 at 22 — 3 mpg apart, or $209 a year in fuel between buying one year and the other. The 2026 car does 24. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 21 / 30 | 1 | $1,600 | |
| 2025 | 22 / 30 | 1 | $1,536 | |
| 2024 | 22 / 30 | 1 | $1,536 | |
| 2023 | 21 / 30 | 1 | $1,600 | |
| 2022 | 21 / 28 | 1 | $1,670 | |
| 2021 | 20 / 26 | 1 | $1,745 | |
| 2020 | 20 / 26 | 1 | $1,745 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 7 EPA ratings of the Audi A6 allroad — 1 engine across 2020–2026. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,279. Full method.
Frequently asked questions
What mpg does the Audi A6 allroad get?
23.6 mpg combined on average — 21 in the city and 28.6 on the highway, per EPA ratings across 2020–2026.
How much does a Audi A6 allroad cost in fuel per year?
About $1,627 at 12,000 miles and $3.20 a gallon — roughly $8,135 over five years, or 0.136 dollars a mile.
Which A6 allroad engine is the most economical?
The 3L 6-cyl Hybrid at 23.6 mpg.
Is the A6 allroad good on fuel compared with similar cars?
Against other Hybrid cars it sits below the average of 29.8 mpg, computed across 1162 ratings.
Are these real-world A6 allroad figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Audi A6 allroad is $3,279 against the $1,627 we compute at 12,000 miles. Expect a little worse in practice: the spread between the city and highway figures is smaller than the spread between two drivers of the same one.
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