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2006 Audi A6 fuel economy

The EPA lists 4 versions of the 2006 Audi A6. Combined fuel economy ranges from 18 to 21 MPG; the most efficient version is rated 18 city / 27 highway.

At a glance

Combined
18 to 21 MPG depending on version
City and highway
18 and 27 most efficient version
Yearly fuel cost
$3,900 EPA estimate, most efficient version

Source: U.S. EPA fueleconomy.gov

Every version the EPA tested

VersionEngineDriveCityHighwayCombinedYearly fuel cost
A6
Automatic (variable gear ratios)
6-cyl 3.1L Front-Wheel Drive 182721 MPG $3,900
A6 quattro
Automatic (S6)
6-cyl 3.1L 4-Wheel or All-Wheel Drive 172520 MPG $4,100
A6 Avant quattro
Automatic (S6)
6-cyl 3.1L 4-Wheel or All-Wheel Drive 162419 MPG $4,350
A6 quattro
Automatic (S6)
8-cyl 4.2L 4-Wheel or All-Wheel Drive 152118 MPG $4,550
EPA estimates under standard test conditions. Your mileage will vary with driving style, load and weather.

At EPA assumptions, the most efficient version costs about $3,900 per year in fuel, versus $4,550 for the least efficient.

Work out what this car would cost you in fuel each year

Fuel economy in other model years