- Newest year: 2009
- Gas
- Small cars
2004-2009 Audi S4 MPG & Fuel Cost
6 model years · 15–18 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 small car configurations, MY2009. Ranked against all rated configurations, not sales-weighted.
2004-2009 Audi S4 at a glance
The 2004-2009 Audi S4 covers 6 model years in the EPA database (32 configurations in all), rated 15–18 MPG combined. The newest model year, 2009, costs about $5,020 a year to fuel for its most efficient version, the Cabriolet 4.2L 8-cyl 4WD (16 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2005, 2007 and 2009; 2006 and 2008 repeat the values of the year before. The best combined rating in the generation, 18 MPG, was reached in 2004.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2004-2009 Audi S4 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2009 | Gas | 15–16 MPG | $5,020–$5,360 | Ratings changed |
| 2008 | Gas | 15–16 MPG | $5,020–$5,360 | Same EPA ratings as 2007 |
| 2007 | Gas | 15–16 MPG | $5,020–$5,360 | Ratings changed |
| 2006 | Gas | 16 MPG | $5,020 | Same EPA ratings as 2005 |
| 2005 | Gas | 16 MPG | $5,020 | Ratings changed |
| 2004 | Gas | 16–18 MPG | $4,460–$5,020 | First year |
What the 2009 Cabriolet 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 small car median
$1,530more a year
Class median $3,490 a year, MY2009
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2009 Audi S4 MPG
Versus 2008: The most efficient configuration stays at 16 MPG. Its annual cost stays at $5,020.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cabriolet 4.2L 8-cyl 4WD Automatic (S6) (Most efficient) | 4.2L 8-cyl | 4WD | 14 | 21 | 16 | $5,020 |
| Cabriolet 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 19 | 15 | $5,360 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Audi S4 MPG
Same EPA ratings as 2007
EPA lists the same ratings for the 2008 Audi S4 as for the 2007 model, so the configurations and costs are the ones in the 2007 section above.See 2007
2007 Audi S4 MPG
15–16 MPG · $5,020–$5,360/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration stays at 16 MPG. Its annual cost stays at $5,020.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cabriolet 4.2L 8-cyl 4WD Automatic (S6) (Most efficient) | 4.2L 8-cyl | 4WD | 14 | 21 | 16 | $5,020 |
| S4 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 14 | 21 | 16 | $5,020 |
| Avant 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 14 | 21 | 16 | $5,020 |
| Cabriolet 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 19 | 15 | $5,360 |
| S4 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 15 | $5,360 |
| Avant 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 15 | $5,360 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2006 Audi S4 MPG
Same EPA ratings as 2005
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
EPA lists the same ratings for the 2006 Audi S4 as for the 2005 model, so the configurations and costs are the ones in the 2005 section above.See 2005
2005 Audi S4 MPG
16 MPG · $5,020/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2004: The most efficient configuration moves from 18 to 16 MPG, down 2. Its annual cost goes from $4,460 to $5,020, $560 more.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cabriolet 4.2L 8-cyl 4WD Manual 6-spd (Most efficient) | 4.2L 8-cyl | 4WD | 13 | 20 | 16 | $5,020 |
| Cabriolet 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 14 | 20 | 16 | $5,020 |
| S4 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 16 | $5,020 |
| S4 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 14 | 21 | 16 | $5,020 |
| Avant 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 16 | $5,020 |
| Avant 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 14 | 21 | 16 | $5,020 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2004 Audi S4 MPG
16–18 MPG · $4,460–$5,020/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cabriolet 4.2L 8-cyl 4WD Automatic (S6) (Most efficient) | 4.2L 8-cyl | 4WD | 16 | 21 | 18 | $4,460 |
| S4 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 16 | 22 | 18 | $4,460 |
| Avant 4.2L 8-cyl 4WD Automatic (S6) | 4.2L 8-cyl | 4WD | 16 | 22 | 18 | $4,460 |
| Cabriolet 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 16 | $5,020 |
| S4 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 16 | $5,020 |
| Avant 4.2L 8-cyl 4WD Manual 6-spd | 4.2L 8-cyl | 4WD | 13 | 20 | 16 | $5,020 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the Cabriolet 4.2L 8-cyl 4WD: $5,990 in California and $4,350 in Texas, a $1,640 difference.
- California $5,990
- Washington $5,630
- New York $4,960
- Florida $4,590
- Texas $4,350
Similar cars
Closest combined MPG among MY2009 small car models.
Generations
Frequently asked questions
What gas mileage does the 2004-2009 Audi S4 get?
EPA rates the 2004-2009 Audi S4 at 15–18 MPG combined across 32 configurations and 6 model years. The most efficient version, the 2004 Cabriolet 4.2L 8-cyl 4WD, is rated 18 MPG (16 city, 21 highway).
Which years had the best MPG in the 2004-2009 Audi S4?
The Cabriolet 4.2L 8-cyl 4WD reached the generation's best combined rating, 18 MPG, in 2004. The lowest top rating, 16 MPG, was in 2005, 2006, 2007, 2008 and 2009.
Did EPA ratings change during the 2004-2009 Audi S4?
Yes. Ratings changed in 2005, 2007 and 2009. In 2006 and 2008 the values repeat the year before.
How does the 2004-2009 Audi S4 compare with the previous generation?
The previous generation (2001-2002 Audi S4) is rated 18 MPG combined and costs $4,460 a year to fuel; the 2004-2009 model is rated 15–18 MPG and costs $4,460–$5,360 a year.
How much does it cost to fuel a 2009 Audi S4 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Cabriolet 4.2L 8-cyl 4WD costs about $5,020 a year. Across all 2 configurations the cost runs $5,020–$5,360 a year. That is a $340 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2009 Audi S4 100 miles?
About $33.47 per 100 miles for the Cabriolet 4.2L 8-cyl 4WD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $33.47 and $35.73 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2009 Audi S4 more efficient in the city or on the highway?
The Cabriolet 4.2L 8-cyl 4WD is rated 14 city and 21 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2009 Audi S4 compare with other small car configurations?
The Cabriolet 4.2L 8-cyl 4WD costs about $5,020 a year to fuel, $1,530 more than the class median of $3,490, and less than 1 of 10 small car configurations. The comparison covers all 336 rated small car configurations for MY2009, not weighted by sales.
Is the 2009 Audi S4 different from the 2008 model?
The most efficient configuration stays at 16 MPG. Its annual cost stays at $5,020. EPA lists 2 configurations for 2009 against 6 configurations for 2008. See the 2008 Audi S4 for that year.