Cadillac XTS Limo
17 MPG The 2019 Cadillac XTS Limo is EPA-rated at 17 MPG combined (15 city / 21 highway). Over 15,000 miles a year that is about 882 gallons, $2824 a year in fuel, or $0.188 per mile at $3.20/gal.
Across its full 2013–2019 run it averages 17 MPG, essentially flat across 7 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 | $0.147 | $1471 | $2206 | $2941 |
| $3.00/gal | $0.176 | $1765 | $2647 | $3529 |
| $3.20/gal | $0.188 | $1882 | $2824 | $3765 |
| $3.50/gal | $0.206 | $2059 | $3088 | $4118 |
| $4.00/gal | $0.235 | $2353 | $3529 | $4706 |
| $4.50/gal | $0.265 | $2647 | $3971 | $5294 |
| $5.00/gal | $0.294 | $2941 | $4412 | $5882 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2019 | 17 MPG | 15 | 21 | $3650 | 521 | 1 |
| 2018 | 17 MPG | 15 | 21 | $3650 | 525 | 1 |
| 2017 | 17 MPG | 15 | 21 | $3650 | 525 | 1 |
| 2016 | 17 MPG | 15 | 21 | $3650 | 524 | 1 |
| 2015 | 17 MPG | 15 | 21 | $3650 | 527 | 1 |
| 2014 | 17 MPG | 15 | 21 | $3650 | 519 | 1 |
| 2013 | 17 MPG | 15 | 21 | $3650 | 524 | 1 |
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 29 special purpose vehicle 2wd models tracked here, the Cadillac XTS Limo ranks 16 on current figures, against a class average of 18.8 MPG.
Closest more-efficient alternatives in the same class: Chevrolet S10 Blazer 2WD (17.5), Ford Bronco II 2WD (17.5), GMC S15 Jimmy 2WD (18), Mercedes-Benz Metris (Passenger Van) (19), Mercedes-Benz Metris (Cargo Van, LWB) (20).
Tailpipe CO₂ is rated at 521 grams per mile, which works out to roughly 7.8 tonnes a year at 15,000 miles.
Questions
What MPG does the Cadillac XTS Limo get?
The 2019 Cadillac XTS Limo is rated at 17 MPG combined by the EPA — 15 city and 21 highway. Across all 7 model years in the database it averages 17 MPG, ranging from 17 to 17 depending on year and trim.
How much does a Cadillac XTS Limo cost in fuel per year?
At 17 MPG and 15,000 miles a year, it burns about 882 gallons — roughly $2824 a year with fuel at $3.20 a gallon, or $0.188 per mile. The EPA's own published annual figure for the 2019 model is $3650.
Has the Cadillac XTS Limo become more efficient over time?
Barely. It sits at 17 MPG today against 17 in 2013 — essentially flat across 7 model years, with efficiency gains offset by weight and power creep.
Is the Cadillac XTS Limo efficient for its class?
It ranks 16 of 29 in the Special Purpose Vehicle 2WD class on current figures, against a class average of 18.8 MPG. That is 1.8 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.