← all 2010 Audi A6 Avant quattro trims
2010 Audi A6 Avant quattro — 3.0L 6-cyl, S6 automatic, AWD
This 2010 Audi A6 Avant quattro (3.0L 6-cyl, S6 automatic, AWD) takes premium gasoline. PREMIUM
21
MPG combined (18 city / 26 hwy)
$3,650
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
The EPA lists this trim as premium because that's the fuel the manufacturer specified for its mileage test. Many such engines will run on regular with slightly lower power and MPG — but check your owner's manual to see whether premium is required or just recommended.
EPA fuel type: Premium · class: Midsize Station Wagons · retrieved 2026-06-14.