- Newest year: 2018
- Gas
- Small cars
2018 Audi S5 MPG & Fuel Cost
3 configurations · 23–24 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 4 of 10 small car configurations, MY2018. Ranked against all rated configurations, not sales-weighted.
2018 Audi S5 at a glance
The 2018 Audi S5 has 3 configurations in the EPA database, rated 23–24 MPG combined. The most efficient is the S5 3.0L 6-cyl turbo AWD at 24 MPG, which costs about $3,380 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). Annual fuel cost across the configurations runs from $3,380 to $3,470, a $90 difference. The S5 3.0L 6-cyl turbo AWD costs less to fuel than 4 of 10 small car configurations rated for MY2018 (class median $3,170 a year).
What the 2018 S5 3.0L 6-cyl turbo AWD costs to drive
Per month
$282
$3,380 a year ÷ 12
Per 25 miles
$5.63
Per 100 miles
$22.53
Five years
$16,900
5 × the yearly cost, prices held at today's level
vs the small car median
$210more a year
Class median $3,170 a year, MY2018
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2018 Audi S5 MPG
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S5 (Most efficient) | 3.0L 6-cyl turbo | AWD | 21 | 30 | 24 | $3,380 |
| Sportback | 3.0L 6-cyl turbo | AWD | 21 | 30 | 24 | $3,380 |
| Cabriolet | 3.0L 6-cyl turbo | AWD | 20 | 29 | 23 | $3,470 |
3 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 S5 3.0L 6-cyl turbo AWD: $4,030 in California and $2,930 in Texas, a $1,100 difference.
- California $4,030
- Washington $3,790
- New York $3,340
- Florida $3,090
- Texas $2,930
Similar cars
Closest combined MPG among MY2018 small car models.
Generations
Frequently asked questions
How does the 2018 Audi S5 compare with the previous generation?
The previous generation (2013-2017 Audi S5) is rated 20–21 MPG combined and costs $3,750–$3,980 a year to fuel; the 2018 model is rated 23–24 MPG and costs $3,380–$3,470 a year.
What gas mileage does the 2018 Audi S5 get?
EPA rates the 2018 Audi S5 at 23–24 MPG combined across 3 configurations. The most efficient, the S5 3.0L 6-cyl turbo AWD, is rated 24 MPG combined (21 city / 30 highway).
How much does it cost to fuel a 2018 Audi S5 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the S5 3.0L 6-cyl turbo AWD costs about $3,380 a year. Across all 3 configurations the cost runs $3,380–$3,470 a year. That is a $90 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2018 Audi S5 100 miles?
About $22.53 per 100 miles for the S5 3.0L 6-cyl turbo AWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $22.53 and $23.13 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2018 Audi S5 more efficient in the city or on the highway?
The S5 3.0L 6-cyl turbo AWD is rated 21 city and 30 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2018 Audi S5 compare with other small car configurations?
The S5 3.0L 6-cyl turbo AWD costs about $3,380 a year to fuel, $210 more than the class median of $3,170, and less than 4 of 10 small car configurations. The comparison covers all 365 rated small car configurations for MY2018, not weighted by sales.
Is the 2018 Audi S5 different from the 2017 model?
The most efficient configuration moves from 21 to 24 MPG, up 3. Its annual cost goes from $3,750 to $3,380, $370 less. EPA lists 3 configurations for 2018 against 3 configurations for 2017. See the 2017 Audi S5 for that year.