Gallonly
2007-Audi-S8
Shown: 2007-Audi-S8. Photo: IFCAR, Public domain, via Wikimedia Commons
  • Newest year: 2009
  • Gas
  • Midsize cars
  • Same as 2008

2007-2009 Audi S8 MPG & Fuel Cost

3 model years · 15 MPG combined

15 MPG
Combined
13 MPG
City
19 MPG
Highway
Annual fuel cost · S8 5.2L 10-cyl 4WD
$5,360

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

Among the costliest midsize car configurations to fuel, MY2009. Ranked against all rated configurations, not sales-weighted.

2007-2009 Audi S8 at a glance

The 2007-2009 Audi S8 covers 3 model years in the EPA database (3 configurations in all), rated 15 MPG combined. The newest model year, 2009, costs about $5,360 a year to fuel for its most efficient version, the S8 5.2L 10-cyl 4WD (15 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA lists identical ratings for every model year of this generation.

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

2007-2009 Audi S8 by model year

2007-2009 Audi S8: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2009 Gas 15 MPG $5,360 Same EPA ratings as 2008
2008 Gas 15 MPG $5,360 Same EPA ratings as 2007
2007 Gas 15 MPG $5,360 First year

What the 2009 S8 5.2L 10-cyl 4WD costs to drive

Per month

$447

$5,360 a year ÷ 12

Per 25 miles

$8.93

Per 100 miles

$35.73

Five years

$26,800

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

vs the midsize car median

$2,090more a year

Class median $3,270 a year, MY2009

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

2009 Audi S8 MPG

EPA lists the same ratings for the 2009 Audi S8 as for the 2008 model, so the configurations and costs are the ones in the 2008 section above.See 2008

Gas · 5.2L
Combined
15 MPG
Per year
$5,360

Gas configurations (1)

2009 Audi S8 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 5.2L 10-cyl 4WD 13 19 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).

2008 Audi S8 MPG

Same EPA ratings as 2007

EPA lists the same ratings for the 2008 Audi S8 as for the 2007 model, so the configurations and costs are the ones in the 2007 section above.See 2007

2007 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 · 5.2L
Combined
15 MPG
Per year
$5,360

Gas configurations (1)

2007 Audi S8 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 5.2L 10-cyl 4WD 13 19 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 5.2L 10-cyl 4WD: $6,390 in California and $4,650 in Texas, a $1,740 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 MY2009 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 2007-2009 Audi S8 get?

EPA rates the 2007-2009 Audi S8 at 15 MPG combined across 3 configurations and 3 model years. The most efficient version, the 2009 S8 5.2L 10-cyl 4WD, is rated 15 MPG (13 city, 19 highway).

Which years had the best MPG in the 2007-2009 Audi S8?

Every model year of the 2007-2009 Audi S8 tops out at 15 MPG combined, so no year is better than another.

Did EPA ratings change during the 2007-2009 Audi S8?

No. EPA lists the same ratings for every model year from 2007 to 2009.

How does the 2007-2009 Audi S8 compare with the previous generation?

The previous generation (2002-2003 Audi S8) is rated 15–16 MPG combined and costs $5,020–$5,360 a year to fuel; the 2007-2009 model is rated 15 MPG and costs $5,360 a year.

How much does it cost to fuel a 2009 Audi S8 per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the S8 5.2L 10-cyl 4WD costs about $5,360 a year. Across all 1 configuration the cost runs $5,360 a year.

How much does it cost to drive a 2009 Audi S8 100 miles?

About $35.73 per 100 miles for the S8 5.2L 10-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 2009 Audi S8 more efficient in the city or on the highway?

The S8 5.2L 10-cyl 4WD is rated 13 city and 19 highway MPG, so it is more efficient on the highway, by 6 MPG.

How does the 2009 Audi S8 compare with other midsize car configurations?

The S8 5.2L 10-cyl 4WD costs about $5,360 a year to fuel, $2,090 more than the class median of $3,270, and less than 0 of 10 midsize car configurations. The comparison covers all 130 rated midsize car configurations for MY2009, not weighted by sales.

Is the 2009 Audi S8 different from the 2008 model?

No. EPA lists the same ratings for 2008 and 2009: 1 configuration rated 15 MPG combined. See the 2008 Audi S8 for that year.