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2002 Audi S8
Shown: 2002 Audi S8. Photo: Kieran White, CC BY 2.0, via Wikimedia Commons
  • Newest year: 2003
  • Gas
  • Midsize cars

2002-2003 Audi S8 MPG & Fuel Cost

2 model years · 15–16 MPG combined

16 MPG
Combined
14 MPG
City
20 MPG
Highway
Annual fuel cost · S8 4.2L 8-cyl 4WD
$5,020

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Among the costliest midsize car configurations to fuel, MY2003. Ranked against all rated configurations, not sales-weighted.

2002-2003 Audi S8 at a glance

The 2002-2003 Audi S8 covers 2 model years in the EPA database (2 configurations in all), rated 15–16 MPG combined. The newest model year, 2003, costs about $5,020 a year to fuel for its most efficient version, the S8 4.2L 8-cyl 4WD (16 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2003. The best combined rating in the generation, 16 MPG, was reached in 2003.

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

2002-2003 Audi S8 by model year

2002-2003 Audi S8: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2003 Gas 16 MPG $5,020 Ratings changed
2002 Gas 15 MPG $5,360 First year

What the 2003 S8 4.2L 8-cyl 4WD costs to drive

Per month

$418

$5,020 a year ÷ 12

Per 25 miles

$8.37

Per 100 miles

$33.47

Five years

$25,100

5 × the yearly cost, prices held at today's level

vs the midsize car median

$1,480more a year

Class median $3,540 a year, MY2003

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2003 Audi S8 MPG

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

Versus 2002: The most efficient configuration moves from 15 to 16 MPG, up 1. Its annual cost goes from $5,360 to $5,020, $340 less.

Gas · 4.2L
Combined
16 MPG
Per year
$5,020

Gas configurations (1)

2003 Audi S8 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.2L 8-cyl 4WD 14 20 16 $5,020

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2002 Audi S8 MPG

15 MPG · $5,360/yr

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

Gas · 4.2L
Combined
15 MPG
Per year
$5,360

Gas configurations (1)

2002 Audi S8 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
quattro (Most efficient) 4.2L 8-cyl 4WD 13 20 15 $5,360

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the S8 4.2L 8-cyl 4WD: $5,990 in California and $4,350 in Texas, a $1,640 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2003 midsize car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2002-2003 Audi S8 get?

EPA rates the 2002-2003 Audi S8 at 15–16 MPG combined across 2 configurations and 2 model years. The most efficient version, the 2003 S8 4.2L 8-cyl 4WD, is rated 16 MPG (14 city, 20 highway).

Which years had the best MPG in the 2002-2003 Audi S8?

The S8 4.2L 8-cyl 4WD reached the generation's best combined rating, 16 MPG, in 2003. The lowest top rating, 15 MPG, was in 2002.

Did EPA ratings change during the 2002-2003 Audi S8?

Yes. Ratings changed in 2003.

How does the 2002-2003 Audi S8 compare with the previous generation?

The previous generation (2001 Audi S8) is rated 15 MPG combined and costs $5,360 a year to fuel; the 2002-2003 model is rated 15–16 MPG and costs $5,020–$5,360 a year.

How much does it cost to fuel a 2003 Audi S8 per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the S8 4.2L 8-cyl 4WD costs about $5,020 a year. Across all 1 configuration the cost runs $5,020 a year.

How much does it cost to drive a 2003 Audi S8 100 miles?

About $33.47 per 100 miles for the S8 4.2L 8-cyl 4WD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.

Is the 2003 Audi S8 more efficient in the city or on the highway?

The S8 4.2L 8-cyl 4WD is rated 14 city and 20 highway MPG, so it is more efficient on the highway, by 6 MPG.

How does the 2003 Audi S8 compare with other midsize car configurations?

The S8 4.2L 8-cyl 4WD costs about $5,020 a year to fuel, $1,480 more than the class median of $3,540, and less than 0 of 10 midsize car configurations. The comparison covers all 90 rated midsize car configurations for MY2003, not weighted by sales.

Is the 2003 Audi S8 different from the 2002 model?

The most efficient configuration moves from 15 to 16 MPG, up 1. Its annual cost goes from $5,360 to $5,020, $340 less. EPA lists 1 configuration for 2003 against 1 configuration for 2002. See the 2002 Audi S8 for that year.