Cadillac CTS
22.3 MPG The 2019 Cadillac CTS is EPA-rated at 22.3 MPG combined (19 city / 27.7 highway). Over 15,000 miles a year that is about 673 gallons, $2152 a year in fuel, or $0.143 per mile at $3.20/gal.
Across its full 2003–2019 run it averages 19.3 MPG, improving by 3.3 MPG over 16 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.112 | $1121 | $1682 | $2242 |
| $3.00/gal | $0.135 | $1345 | $2018 | $2691 |
| $3.20/gal | $0.143 | $1435 | $2152 | $2870 |
| $3.50/gal | $0.157 | $1570 | $2354 | $3139 |
| $4.00/gal | $0.179 | $1794 | $2691 | $3587 |
| $4.50/gal | $0.202 | $2018 | $3027 | $4036 |
| $5.00/gal | $0.224 | $2242 | $3363 | $4484 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2019 | 22.3 MPG | 19 | 27.7 | $3283 | 406 | 3 |
| 2018 | 22.7 MPG | 19.3 | 28 | $3250 | 408 | 3 |
| 2017 | 22.3 MPG | 19.3 | 28 | $3333 | 405 | 3 |
| 2015 | 15 MPG | 13 | 18.5 | $5150 | 600 | 2 |
| 2014 | 17 MPG | 14.7 | 21.3 | $4417 | 535 | 3 |
| 2013 | 18.2 MPG | 15.6 | 23.2 | $3690 | 499 | 5 |
| 2012 | 18.2 MPG | 15.6 | 23.4 | $3900 | 501 | 5 |
| 2011 | 18.3 MPG | 15.7 | 23.7 | $3800 | 495 | 6 |
| 2010 | 20.3 MPG | 17 | 26.3 | $3100 | 441 | 4 |
| 2009 | 19.8 MPG | 16.8 | 25.5 | $3163 | 451 | 4 |
| 2008 | 19.8 MPG | 16.8 | 25.5 | $3163 | 451 | 4 |
| 2007 | 18.8 MPG | 15.5 | 24.5 | $3338 | 474 | 4 |
| 2006 | 18.8 MPG | 15.5 | 24.5 | $3338 | 474 | 4 |
| 2005 | 18.8 MPG | 15.8 | 24.5 | $3338 | 474 | 4 |
| 2004 | 19 MPG | 16.3 | 24 | $3800 | 468 | 3 |
| 2003 | 19 MPG | 16.5 | 24 | $4050 | 468 | 2 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 261 midsize cars models tracked here, the Cadillac CTS ranks 141 on current figures, against a class average of 27.2 MPG.
Closest more-efficient alternatives in the same class: Cadillac CT5 AWD (22.5), Cadillac CTS AWD (22.5), Kia Stinger RWD (22.5), Lincoln MKZ FWD (22.5), Saab 9-5 Sedan (22.5).
Tailpipe CO₂ is rated at 406 grams per mile, which works out to roughly 6.1 tonnes a year at 15,000 miles.
Questions
What MPG does the Cadillac CTS get?
The 2019 Cadillac CTS is rated at 22.3 MPG combined by the EPA — 19 city and 27.7 highway. Across all 16 model years in the database it averages 19.3 MPG, ranging from 14 to 25 depending on year and trim.
How much does a Cadillac CTS cost in fuel per year?
At 22.3 MPG and 15,000 miles a year, it burns about 673 gallons — roughly $2152 a year with fuel at $3.20 a gallon, or $0.143 per mile. The EPA's own published annual figure for the 2019 model is $3283.
Has the Cadillac CTS become more efficient over time?
Yes. It has gone from 19 MPG in 2003 to 22.3 in 2019 — an improvement of 3.3 MPG, or 17% across 16 model years.
Is the Cadillac CTS efficient for its class?
It ranks 141 of 261 in the Midsize Cars class on current figures, against a class average of 27.2 MPG. That is 4.9 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.