2017 Cadillac XTS AWD: MPG and fuel economy
The 2017 Cadillac XTS AWD is rated by the U.S. Environmental Protection Agency at 20 combined MPG, with 17 MPG in the city and 26 MPG on the highway. That lands well below the average for cars in the Large Cars class in the same model year.
This page collects every fuel-economy figure the EPA publishes for the 2017 Cadillac XTS AWD. Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. The EPA rates 2 separate variants of this car (different engine, transmission, or drivetrain combinations), and you can compare them side by side in the trims table. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.
Key takeaways
- Returns 33% worse combined MPG than the average car in the Large Cars class for the 2017 model year (29.8 MPG class average).
- The most efficient car in the Large Cars class for the 2017 model year is the Tesla Model S AWD - 60D at 104 MPG.
- EPA estimates this car costs around $4,250 more in fuel over five years than an average new vehicle of the same model year.
Fuel economy at a glance
These are the EPA's official ratings for the 2017 Cadillac XTS AWD. The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.
When the EPA tests several variants of the same nameplate (for example, a front-wheel-drive version and an all-wheel-drive version), each gets its own rating. The figures shown here are the headline variant, taken as the configuration with the best combined MPG. The trims table further down covers all 2 variants side by side.
Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).
| Combined MPG | 20 MPG |
| City MPG | 17 MPG |
| Highway MPG | 26 MPG |
| Annual fuel cost | $3,000 |
| Tailpipe CO₂ | 439 g/mi |
| Fuel type | Regular |
How the 2017 Cadillac XTS AWD compares
The 2017 Cadillac XTS AWD returns 20 combined MPG. Cars in the Large Cars class for the same model year average 29.8 MPG, which puts this car behind the class average by about 33%.
The most efficient car in the Large Cars class for the 2017 model year is the Tesla Model S AWD - 60D at 104 MPG. The bar chart below puts the Cadillac XTS AWD alongside the class best and the class average so you can see the full picture.
For broader context, the average new car of the 2017 model year (across all classes) returns 26 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 2017 model year is on its own page.
Trim variants rated for 2017
The EPA rates 2 separate variants of the 2017 Cadillac XTS AWD. The differences come from the engine size, transmission type, and drivetrain (front-wheel drive, all-wheel drive, and so on). The same nameplate can land several MPG apart depending on the configuration you actually buy.
| Engine and transmission | Drive | Combined | City | Highway | Annual cost |
|---|---|---|---|---|---|
| 3.6L, 6-cyl, Automatic (S6) | All-Wheel Drive | 20 MPG | 17 MPG | 26 MPG | $3,000 |
| 3.6L, 6-cyl, turbo, Automatic (S6) | All-Wheel Drive | 18 MPG | 16 MPG | 23 MPG | $3,300 |
Annual fuel cost across driving patterns
The headline annual fuel cost the EPA publishes assumes 15,000 miles of driving per year and a fuel mix of 55% city and 45% highway. The dollar figure is calculated using the EPA's current reference price for regular gasoline, which is $3.99/gallon. EPA updates that reference periodically rather than tracking live pump prices, so treat it as a window-sticker estimate rather than today's pump number.
The table below scales the EPA's number to three common driving patterns. The combined MPG and the reference fuel price stay constant, only the annual mileage changes. To get a current-prices estimate, take your local gas price and multiply by 750 gallons (the car's annual consumption at the rated MPG).
| Driving pattern | Estimated annual fuel cost |
|---|---|
| Light driver, 7,500 miles per year | $1,500 |
| Average driver, 15,000 miles per year | $3,000 |
| Heavy driver, 25,000 miles per year | $5,000 |
Year-over-year MPG for the Cadillac XTS AWD
The EPA has rated the Cadillac XTS AWD across 7 model years, from 2013 Cadillac XTS AWD through 2019 Cadillac XTS AWD. The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.
Combined MPG has stayed in roughly the same range across the run, hovering close to 20 MPG.
| Year | Combined MPG | Open year page |
|---|---|---|
| 2019 | 20 MPG | 2019 Cadillac XTS AWD |
| 2018 | 20 MPG | 2018 Cadillac XTS AWD |
| 2017 | 20 MPG | this page |
| 2016 | 20 MPG | 2016 Cadillac XTS AWD |
| 2015 | 20 MPG | 2015 Cadillac XTS AWD |
| 2014 | 20 MPG | 2014 Cadillac XTS AWD |
| 2013 | 20 MPG | 2013 Cadillac XTS AWD |
Compare against other Large Cars for 2017
If you are cross-shopping the 2017 Cadillac XTS AWD, the most useful comparison is against the other cars in the Large Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.
The Tesla Model S AWD - 60D leads this group at 104 MPG, 84 MPG ahead of the 2017 Cadillac XTS AWD.
Specifications
The 2017 Cadillac XTS AWD runs a 3.6-liter 6-cylinder engine paired with a automatic (s6), sending power through all-wheel drive.
Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.
- Vehicle class
- Large Cars
- Engine
- 3.6L 6-cylinder
- Transmission
- Automatic (S6)
- Drivetrain
- All-Wheel Drive
- Fuel type
- Regular
- Annual petroleum use
- 14.9 barrels per year
Common questions about the 2017 Cadillac XTS AWD
Quick answers to the questions people most often search for when looking up the 2017 Cadillac XTS AWD.
-
Is the 2017 Cadillac XTS AWD fuel efficient?
Not particularly. The 2017 Cadillac XTS AWD returns 20 combined MPG, which trails the average car in the Large Cars class for the same model year by about 33%. -
What MPG does the 2017 Cadillac XTS AWD get?
The EPA rates the 2017 Cadillac XTS AWD at 20 combined MPG, 17 MPG in city driving, and 26 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is. -
How much does it cost to fuel a 2017 Cadillac XTS AWD per year?
The EPA estimates an annual fuel cost of $3,000 for the 2017 Cadillac XTS AWD. That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade. -
What fuel does the 2017 Cadillac XTS AWD use?
The EPA lists the 2017 Cadillac XTS AWD as running on regular gasoline. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity. -
Has the Cadillac XTS AWD become more fuel efficient over time?
Combined MPG has stayed close to flat across the run. Both the earliest (2013 Cadillac XTS AWD, 20 MPG) and most recent (2019 Cadillac XTS AWD, 20 MPG) versions sit in the same range. -
How much CO₂ does the 2017 Cadillac XTS AWD emit?
Tailpipe CO₂ emissions are 439 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 6,585 kilograms of CO₂. -
What is the difference between the city and highway MPG of the 2017 Cadillac XTS AWD?
City driving returns 17 MPG and highway driving returns 26 MPG, a gap of 9 MPG. A spread that wide is typical of cars with conventional automatic or manual transmissions, where stop-start city traffic eats more fuel than a steady highway cruise. -
What engine is in the 2017 Cadillac XTS AWD?
The 2017 Cadillac XTS AWD has a 3.6-liter 6-cylinder engine (EPA description: SIDI). -
What transmission and drivetrain does the 2017 Cadillac XTS AWD have?
The 2017 Cadillac XTS AWD comes with a automatic (s6) transmission and all-wheel drive. All-wheel-drive variants typically read 1 to 3 MPG lower than the front-wheel-drive equivalent of the same engine, since the extra hardware adds weight and parasitic loss. -
How does the 2017 Cadillac XTS AWD compare to the best car in its class?
The most efficient car in the Large Cars class for the 2017 model year is the Tesla Model S AWD - 60D at 104 combined MPG. The Cadillac XTS AWD returns 20 MPG, a gap of 84 MPG. If you are comparing on fuel economy alone, the class leader is worth a look.
Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.