The Audi RS 6 does 16 mpg combined (14 city, 20 highway), which works out to about $2,400 a year in fuel at $3.20 a gallon and 12,000 miles. Against other V8 cars it sits below the average of 16.1 mpg.
Every Audi RS 6 engine, compared
The Audi RS 6 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 |
|---|---|---|---|---|
| 4.2L 8-cyl | 14 / 20 | 2003–2003 | $2,400 |
What that actually costs
The Audi RS 6 burns a gallon every 16 miles, so 12,000 miles takes about 750 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.200 |
| Fuel per year | $2,400 |
| Fuel over five years | $12,000 |
| Against other V8 cars | +$15 a year |
| EPA's own estimate | $4,800 a year |
City or highway — who is this car for
The Audi RS 6 gives up 6 mpg the moment you leave the motorway — 20 out there against 14 in town, a 43% drop worth $823 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 | 14 mpg | $2,743 a year if you only drive in town |
| Highway | 20 mpg | $1,920 a year if you mostly commute |
| Gap | +6 mpg (43%) | Wide — this car dislikes traffic |
How the RS 6 changed over the years
Combined figure across the 1 model year the RS 6 was rated in, all of them at 16 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2003 | 14 / 20 | 1 | $2,400 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 1 EPA ratings of the Audi RS 6 — 1 engine across 2003–2003. 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 $4,800. Full method.
Frequently asked questions
What mpg does the Audi RS 6 get?
16 mpg combined on average — 14 in the city and 20 on the highway, per EPA ratings across 2003–2003.
How much does a Audi RS 6 cost in fuel per year?
About $2,400 at 12,000 miles and $3.20 a gallon — roughly $12,000 over five years, or 0.200 dollars a mile.
Which RS 6 engine is the most economical?
The 4.2L 8-cyl at 16 mpg.
Is the RS 6 good on fuel compared with similar cars?
Against other V8 cars it sits below the average of 16.1 mpg, computed across 3323 ratings.
Are these real-world RS 6 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 RS 6 is $4,800 against the $2,400 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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