- Newest year: 2015
- Gas
- Small cars
2013-2015 Cadillac ATS MPG & Fuel Cost
3 model years · 21–26 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 7 of 10 small car configurations, MY2015. Ranked against all rated configurations, not sales-weighted.
2013-2015 Cadillac ATS at a glance
The 2013-2015 Cadillac ATS covers 3 model years in the EPA database (20 configurations in all), rated 21–26 MPG combined. The newest model year, 2015, costs about $2,610 a year to fuel for its most efficient version, the ATS 2.5L 4-cyl RWD (25 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2014 and 2015. The best combined rating in the generation, 26 MPG, was reached in 2013 and 2014.
2013-2015 Cadillac ATS by model year
What the 2015 ATS 2.5L 4-cyl RWD costs to drive
Per month
$218
$2,610 a year ÷ 12
Per 25 miles
$4.35
Per 100 miles
$17.40
Five years
$13,050
5 × the yearly cost, prices held at today's level
vs the small car median
$430less a year
Class median $3,040 a year, MY2015
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2015 Cadillac ATS MPG
Versus 2014: The most efficient configuration moves from 26 to 25 MPG, down 1. Its annual cost goes from $2,530 to $2,610, $80 more.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| ATS 2.5L 4-cyl (Most efficient) | 2.5L 4-cyl | RWD | 21 | 32 | 25 | $2,610 |
| ATS 2.0L 4-cyl turbo RWD Automatic (S6) | 2.0L 4-cyl turbo | RWD | 21 | 29 | 24 | $2,710 |
| ATS 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 20 | 27 | 23 | $2,840 |
| ATS 2.0L 4-cyl turbo RWD Manual 6-spd | 2.0L 4-cyl turbo | RWD | 19 | 29 | 23 | $2,860 |
| ATS 3.6L 6-cyl RWD | 3.6L 6-cyl | RWD | 18 | 27 | 22 | $3,020 |
| ATS 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 26 | 21 | $3,070 |
2014 Cadillac ATS MPG
21–26 MPG · $2,530–$3,140/yr
Versus 2013: The most efficient configuration stays at 26 MPG. Its annual cost stays at $2,530.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| ATS 2.5L 4-cyl (Most efficient) | 2.5L 4-cyl | RWD | 22 | 32 | 26 | $2,530 |
| ATS 2.0L 4-cyl turbo RWD Automatic (S6) | 2.0L 4-cyl turbo | RWD | 21 | 30 | 24 | $2,700 |
| ATS 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 20 | 29 | 23 | $2,840 |
| ATS 2.0L 4-cyl turbo RWD Manual 6-spd | 2.0L 4-cyl turbo | RWD | 19 | 29 | 23 | $2,860 |
| ATS 3.6L 6-cyl RWD | 3.6L 6-cyl | RWD | 18 | 27 | 22 | $3,020 |
| ATS 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 26 | 21 | $3,140 |
2013 Cadillac ATS MPG
21–26 MPG · $2,530–$3,140/yr
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| ATS 2.5L 4-cyl (Most efficient) | 2.5L 4-cyl | RWD | 22 | 32 | 26 | $2,530 |
| ATS 2.0L 4-cyl turbo RWD Automatic (S6) | 2.0L 4-cyl turbo | RWD | 21 | 31 | 24 | $2,690 |
| ATS 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 20 | 29 | 23 | $2,790 |
| ATS 2.0L 4-cyl turbo RWD Manual 6-spd | 2.0L 4-cyl turbo | RWD | 19 | 29 | 23 | $2,850 |
| ATS 3.6L 6-cyl RWD Automatic (S6) | 3.6L 6-cyl | RWD | 19 | 27 | 22 | $2,990 |
| ATS 3.6L 6-cyl RWD Automatic (S6) | 3.6L 6-cyl | RWD | 19 | 27 | 22 | $2,990 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| ATS 3.6L 6-cyl AWD Automatic (S6) | 3.6L 6-cyl | AWD | 18 | 26 | 21 | $3,140 |
| ATS 3.6L 6-cyl AWD Automatic (S6) | 3.6L 6-cyl | AWD | 18 | 26 | 21 | $3,140 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
Fuel cost by state
Yearly cost of the ATS 2.5L 4-cyl RWD: $3,560 in California and $2,280 in Texas, a $1,280 difference.
- California $3,560
- Washington $3,290
- New York $2,610
- Florida $2,470
- Texas $2,280
Similar cars
Closest combined MPG among MY2015 small car models.
Generations
- 2013-2015
- 2016-2019
Frequently asked questions
What gas mileage does the 2013-2015 Cadillac ATS get?
EPA rates the 2013-2015 Cadillac ATS at 21–26 MPG combined across 20 configurations and 3 model years. The most efficient version, the 2014 ATS 2.5L 4-cyl RWD, is rated 26 MPG (22 city, 32 highway).
Which years had the best MPG in the 2013-2015 Cadillac ATS?
The ATS 2.5L 4-cyl RWD reached the generation's best combined rating, 26 MPG, in 2013 and 2014. The lowest top rating, 25 MPG, was in 2015.
Did EPA ratings change during the 2013-2015 Cadillac ATS?
Yes. Ratings changed in 2014 and 2015.
How much does it cost to fuel a 2015 Cadillac ATS per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the ATS 2.5L 4-cyl RWD costs about $2,610 a year. Across all 6 configurations the cost runs $2,610–$3,070 a year. That is a $460 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2015 Cadillac ATS 100 miles?
About $17.40 per 100 miles for the ATS 2.5L 4-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $17.40 and $20.47 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2015 Cadillac ATS more efficient in the city or on the highway?
The ATS 2.5L 4-cyl RWD is rated 21 city and 32 highway MPG, so it is more efficient on the highway, by 11 MPG.
How does the 2015 Cadillac ATS compare with other small car configurations?
The ATS 2.5L 4-cyl RWD costs about $2,610 a year to fuel, $430 less than the class median of $3,040, and less than 7 of 10 small car configurations. The comparison covers all 385 rated small car configurations for MY2015, not weighted by sales.
Is the 2015 Cadillac ATS different from the 2014 model?
The most efficient configuration moves from 26 to 25 MPG, down 1. Its annual cost goes from $2,530 to $2,610, $80 more. EPA lists 6 configurations for 2015 against 6 configurations for 2014. See the 2014 Cadillac ATS for that year.