2018 Audi A6 quattroFuel Economy & MPG Ratings

Gasoline Midsize CarsAll-Wheel Drive
City
22
MPG
Highway
31
MPG
Combined
26
MPG

Real-World MPG

Based on 1 owner report via EPA fueleconomy.gov

25.5MPG average-2.1% vs EPA label
EPA combined: 26 MPG · Owner reported avg: 25.5 MPG

Driving mix: City 72% / Highway 28%

Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.

Owner reported MPG for this vehicle averages 25.5 real world MPG based on 1 owner report. EPA combined rating is 26 MPG.

Trim Comparison

Automatic (S8)
Premium
City
22
Hwy
31
Comb
26
Fuel cost: $3,150/yr
Automatic (S8)
Premium
City
20
Hwy
29
Comb
23
Fuel cost: $3,550/yr
Annual Fuel Cost
$3,150

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$-3,750

vs. average new vehicle

EPA Fuel Economy Score: 5/10
GHG Score: 5/10

Environment

CO₂ Tailpipe Emissions
347 g/mile
Annual Petroleum Consumption
11.4 barrels

Specifications

Engine
3L 4-cyl
Transmission
8-speed Automatic
Drivetrain
AWD
Body Style
Sedan
GVWR
Class 1 (≤6,000 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
2L, 4-cylinder
Induction Type
Direct Injection
Efficiency Tech
Auto Start-Stop
Fuel Type
Premium Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$2,590/yr
California
$5.957/gal$3,437/yr
Texas
$3.888/gal$2,243/yr
Florida
$4.136/gal$2,386/yr
New York
$4.522/gal$2,609/yr
Ohio
$4.510/gal$2,602/yr
Washington
$5.591/gal$3,226/yr
Colorado
$4.618/gal$2,664/yr
Minnesota
$4.344/gal$2,506/yr
Massachusetts
$4.448/gal$2,566/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 26 MPG combined. Regular gasoline prices. Actual costs vary.

Related

Audi A6 quattro MPG History
See how this model's fuel economy changed by year

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