Audi S6 MPG by year — every rating on record

The Audi S6 has a combined EPA fuel economy rating for 18 model years, from 1995 to 2025. Across those years its best rated version returned 22 mpg (2020) and its thirstiest returned 16 mpg (2007). The EPA record holds 18 configurations for this nameplate, most recently a Midsize Cars.

Year-by-year EPA ratings

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The Audi S6 placed highest in 1995 at #49 of 60, and lowest in 2018 at #115 of 125. It spent 0 of its 18 ranked years in the top half of its class.

Every configuration on record

All 18 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 3 of 5 year-over-year steps improved the top rating.

What S6 fuel costs over a year

At the EPA's 11,500 miles a year, the 2025 Audi S6 burns 523 to 523 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

EPA’s own estimate for the 2025 model year is $3,500 to $3,500 a year in fuel, or $6,250 more than the average new vehicle over five years.

How it compares with other Midsize Cars

Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 22 mpg the Audi S6 is 3 mpg below the median, which is worth about $220 a year at $3.50 a gallon.

• All Midsize Cars rankings — every nameplate in the class, best to worst.

Other Audi nameplates

Every Audi model compared → — all nameplates ranked by best combined rating, with what each one costs a year.