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Audi RS 6 MPG

The 2003 Audi RS 6 gets 16 mpg combined (14 city, 20 highway): about $2,400 a year in fuel at $3.20 a gallon and 12,000 miles.

EPA fueleconomy.gov · 1 engines · 2003–2003 · Updated Nov 4, 2026
Quick answer

Against 260 other V8 cars rated 2001–2003, the RS 6 sits right on their 15.5 mpg average.

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.

FIG.01·Audi RS 6 gas mileage by engine
EngineCombinedCity / HighwayYearsFuel per year
4.2L 8-cyl1614 / 202003–2003$2,400
ROWS 1·SOURCE EPA fueleconomy.gov + ForCar

What that actually costs

FIG.02·Audi RS 6 fuel cost
MeasureValue
Cost per mile (2003)$0.200
Fuel per year$2,400
Fuel over five years$12,000
Against other V8 cars, 2001–2003−$77 a year
EPA's own estimate$4,800 a year
ROWS 5·SOURCE ForCar, computed from EPA ratings

City or highway — who is this car for

The 2003 Audi RS 6 gives up 6 mpg in town: 20 on the highway against 14 in the city, $823 a year if every mile were city driving.

FIG.03·Audi RS 6 city versus highway
MeasureValueReading
City (2003)14 mpg$2,743 a year if you only drive in town
Highway20 mpg$1,920 a year if you mostly commute
Gap+6 mpg (43%)Wide — this car dislikes traffic
ROWS 3·SOURCE EPA fueleconomy.gov + ForCar

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.

FIG.04·Audi RS 6 gas mileage by model year
Model yearCombinedCity / HighwayEngines offeredFuel per year
20031614 / 201$2,400
ROWS 1·SOURCE EPA fueleconomy.gov + ForCar
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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.

Everything on the Audi RS 6
Cargo space15 cu ftInsurance costEstimated per yearWindow stickerOriginal Monroney labelDecode a VINWhat each character meansAbout this car2003–2004

Frequently asked questions

What mpg does the 2003 Audi RS 6 get?

16 mpg combined, 14 city and 20 highway, per EPA. Across every year since 2003 the RS 6 has averaged 16 mpg.

Gas mileage ratings from EPA fueleconomy.gov, unadjusted. Running cost computed by ForCar at 12,000 miles a year and $3.20 a gallon. Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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