2018 · Large Car · Gas

2018 Cadillac XTS MPG & fuel economy

The 2018 Cadillac XTS is a large car offered in 3 EPA-rated configurations. The most efficient version returns 22 MPG combined (19 city / 28 highway) on regular gasoline. Across the lineup, combined ratings range from 18 to 22 MPG. Efficiency is unchanged from the 2017 model. Among 31 large cars rated for 2018, it ranks 15th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,114 a year to fuel.

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Combined 22 MPG 19 MPG city · 28 MPG hwy
Driving range — not published for this model
Your fuel cost $2,114 15,000 mi/yr · $14.09 per 100 mi
Class rank, 2018 #15 of 31 Large Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 2018 Cadillac XTS's fuel average is 9.4 km/L (10.7 L/100 km), or 22 MPG combined: 8.1 km/L in the city and 11.9 km/L on the highway.

MPGkm/LL/100 km
City198.112.4
Highway2811.98.4
Combined229.410.7

How it ranks among 2018 Large Cars

Full class ranking →
  1. 1Hyundai Ioniq58 MPG $802
  2. 2Tesla Model S103 MPGe $880
  3. 3Honda Accord Hybrid47 MPG $989
  4. 4Ford C-MAX40 MPG $1,162
  5. 5Honda Accord33 MPG $1,409
  6. 15Cadillac XTS22 MPG $2,114
  7. 31Rolls-Royce Ghost14 MPG $4,232
2018 XTSOther large carsClass median: $2,114/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

XTS MPG across model years

Full history →

3 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
FWD · 3.6L 6-cyl · 6-speed automatic
XTS		 Gas 19 MPG 28 MPG 22 MPG — $2,114
AWD · 3.6L 6-cyl · 6-speed automatic
XTS AWD		 Gas 17 MPG 26 MPG 20 MPG — $2,325
AWD · 3.6L 6-cyl turbo · 6-speed automatic
XTS AWD		 Gas 16 MPG 23 MPG 18 MPG — $3,292

Specs (most efficient configuration)

Fuel
Regular gasoline
Engine / motor
3.6L 6-cyl
Transmission
6-speed automatic
Drivetrain
FWD
Passenger volume
104 cu ft
Cargo volume
18 cu ft
Tailpipe CO₂
404 g/mi
EPA fuel economy score
4/10
EPA greenhouse gas score
4/10

2018 Cadillac XTS vs. rivals

vs Genesis G80 22 MPG · $2,114/yr Same fuel cost vs Lincoln Continental 21 MPG · $2,214/yr XTS saves $101/yr vs BMW X1 26 MPG · $2,279/yr XTS saves $165/yr vs Porsche Panamera Plug-in Hybrid 46 MPGe + 22 MPG · $2,271/yr XTS saves $157/yr vs Porsche Panamera 24 MPG · $2,469/yr XTS saves $355/yr vs Audi A8 22 MPG · $2,693/yr XTS saves $580/yr vs BMW 7 Series Plug-in Hybrid 64 MPGe + 27 MPG · $1,908/yr 7 Series Plug-in Hybrid saves $205/yr vs Tesla Model S 103 MPGe · $880/yr Model S saves $1,233/yr

Compare the 2018 XTS

With any other car from any year, including other XTS model years. Type a year to jump, e.g. "2015 Accord".

Frequently asked questions

What is the gas mileage of the 2018 Cadillac XTS?

Up to 22 MPG combined (19 city / 28 highway); ratings range from 18 to 22 MPG depending on configuration.

What fuel does the 2018 Cadillac XTS use?

Regular gasoline.

What is the fuel average in km/L for the 2018 Cadillac XTS?

The 2018 Cadillac XTS's fuel average is 9.4 km/L (10.7 L/100 km), or 22 MPG combined: 8.1 km/L in the city and 11.9 km/L on the highway.

How much does it cost to fuel the 2018 Cadillac XTS per year?

About $2,114 at 15,000 miles a year with $3.10/gal regular gas, or $14.09 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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