The 2018 Cadillac XTS gets a 3.6-liter V6 under the hood that makes 304 hp @ 6800 rpm horsepower and 264 lb.-ft. @ 5200 rpm of torque. This engine is quite fuel-efficient and helps the car deliver a mileage of 19 mpg in the city and 28 mpg on the highway. The combined efficiency of the engine comes out to be 22 mpg as rated by the EPA.

2018 Cadillac XTS MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
4dr Sedan (3.6L 6cyl 6A)19 mpg28 mpg22 mpg19 gal.361.0/532.0 mi.
Luxury 4dr Sedan (3.6L 6cyl 6A)19 mpg28 mpg22 mpg19 gal.361.0/532.0 mi.
Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.0/520.0 mi.
Platinum 4dr Sedan (3.6L 6cyl 6A)19 mpg28 mpg22 mpg19 gal.361.0/532.0 mi.
Platinum 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.0/520.0 mi.
Premium Luxury 4dr Sedan (3.6L 6cyl 6A)19 mpg28 mpg22 mpg19 gal.361.0/532.0 mi.
Premium Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.0/520.0 mi.
B9Q Coachbuilder Funeral Coach 4dr Sedan (3.6L 6cyl 6AM)15 mpg21 mpg17 mpg19 gal.-
V4U Coachbuilder Limousine 4dr Sedan (3.6L 6cyl 6AM)15 mpg21 mpg17 mpg19 gal.-
W20 Livery Package 4dr Sedan (3.6L 6cyl 6AM)15 mpg21 mpg17 mpg19 gal.-
W30 Coachbuilder Stretch Livery 4dr Sedan (3.6L 6cyl 6AM)15 mpg21 mpg22 mpg19 gal.-
Armored 4dr Sedan (3.6L 6cyl 6A)19 mpg28 mpg22 mpg19 gal.-
The 2018 Cadillac XTS provides the fuel efficiency figures of 17 mpg in the city, 24.5 mpg on the highway and 19.5 mpg combined. Though these numbers are respectable, the 2018 Cadillac XTS still falls a little behind 2018 Mercedes-Benz C-Class as the latter possess better mileage figures.

The total fuel tank capacity of the car is 19.5 gallons which provides a total travel range of 340.0/520.0 - 361.0/532.0 miles. The overall range of the 2018 Cadillac XTS is also less in comparison to some of its rivals due to lower efficiency but you won't have to visit the filling stations every now and then.

2018 Cadillac XTS vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2018 Cadillac XTS15 - 19 mpg21 - 28 mpg17 - 22 mpg19 - 20 gal.340.0/520.0 - 361.0/532.0 mi.
2018 Lincoln Continental16 - 18 mpg24 - 27 mpg19 - 21 mpg19 gal.304.00 / 456.00 - 342.00 / 513.00 mi.
2018 Cadillac ATS19 - 22 mpg27 - 31 mpg22 - 25 mpg16 gal.304.0/432.0 - 352.0/496.0 mi.
2018 Cadillac CT618 - 22 mpg26 - 30 mpg21 - 25 mpg19.5 gal.266.0/399.0 - 429.0/585.0 mi.
2018 Genesis G9015 - 17 mpg23 - 24 mpg18 - 20 mpg21.9 gal.319.0/464.0 - 372.3/525.6 mi.
2018 Mercedes-Benz C-Class23 - 24 mpg32 - 33 mpg26 - 27 mpg17.4 gal.400.20 / 556.80 - 417.60 / 574.20 mi.
2018 Cadillac CTS19 - 22 mpg27 - 30 mpg22 - 25 mpg19 gal.324.0/486.0 - 418.0/570.0 mi.
2018 Infiniti Q7016 - 18 mpg23 - 25 mpg18 - 21 mpg20 gal.320.00 / 460.00 - 360.00 / 500.00 mi.
2018 BMW 5 Series20 - 24 mpg29 - 34 mpg23 - 27 mpg18 gal.360.0/522.0 - 414.0/594.0 mi.
2018 Cadillac ATS-V16 mpg23 mpg19 mpg16 gal.350.0/462.0 mi.
2018 Genesis G8015 - 19 mpg23 - 27 mpg18 - 22 mpg20.3 gal.304.50 / 466.90 - 365.40 / 507.50 mi.

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2017 Cadillac XTS MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
B9Q Coachbuilder Funeral Coach 4dr Sedan (3.6L 6cyl 6AM)15 mpg21 mpg17 mpg18.5 gal.285.00 / 399.00 mi.
Luxury 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
Platinum 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Platinum 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
Premium Luxury 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Premium Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
V4U Coachbuilder Limousine 4dr Sedan (3.6L 6cyl 6AM)15 mpg21 mpg17 mpg18.5 gal.285.00 / 399.00 mi.
W20 Livery Package 4dr Sedan (3.6L 6cyl 6AM)18 mpg28 mpg22 mpg18.5 gal.342.00 / 532.00 mi.
W30 Coachbuilder Stretch Livery 4dr Sedan (3.6L 6cyl 6AM)18 mpg21 mpg22 mpg18.5 gal.342.00 / 532.00 mi.
Armored 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.-

2017 Cadillac XTS vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2017 Cadillac ATS-V 17 (2016) mpg23 mpg19 mpg16 gal.272.00 / 368.00 mi.
2017 Cadillac CTS19 - 22 mpg27 - 30 mpg22 - 25 mpg19 gal.361.00 / 513.00 - 418.00 / 570.00 mi.
2017 Cadillac XTS15 - 18 mpg21 - 28 mpg17 - 22 mpg18.5 - 20 gal.285.00 / 399.00 - 342.00 / 532.00 mi.
2017 Lincoln Continental16 - 18 mpg24 - 27 mpg19 - 21 mpg19 gal.304.00 / 456.00 - 342.00 / 513.00 mi.
2017 Cadillac ATS19 - 22 mpg27 - 31 mpg22 - 25 mpg16 gal.304.00 / 432.00 - 352.00 / 496.00 mi.
2017 Cadillac CT618 - 22 mpg26 - 30 mpg21 - 25 mpg19.5 gal.351.00 / 507.00 - 429.00 / 585.00 mi.
2017 Genesis G9015 - 17 mpg23 - 24 mpg18 - 20 mpg21.9 gal.328.50 / 503.70 - 372.30 / 525.60 mi.
2017 Mercedes-Benz C-Class24 mpg31 - 34 mpg27 - 28 mpg17.4 gal.417.60 / 539.40 mi.
2017 Buick LaCrosse20 - 21 mpg29 - 31 mpg23 - 25 mpg15.8 - 16.2 gal.331.80 / 489.80 mi.
2017 Cadillac CTS V-Sport Sedan16 mpg24 mpg18 mpg19 gal.304.00 / 456.00 mi.
2017 Infiniti Q7016 - 18 mpg23 - 25 mpg18 - 21 mpg20 gal.320.00 / 460.00 - 360.00 / 500.00 mi.
2017 Lincoln MKZ20 - 21 mpg28 - 31 mpg23 - 24 mpg16.5 - 18 gal.346.50 / 511.50 - 360.00 / 504.00 mi.

2016 Cadillac XTS MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Platinum 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
Platinum 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Premium 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
Premium 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
Luxury 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Armored 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.-
Funeral Coach 4dr Sedan (3.6L 6cyl 6A) 14 (2015) mpg21 mpg17 mpg19 gal.266.00 / 399.00 mi.
Limousine 4dr Sedan (3.6L 6cyl 6A) 14 (2015) mpg21 mpg17 mpg19 gal.266.00 / 399.00 mi.
Livery Package 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.
Stretch Livery 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg22 mpg19 gal.342.00 / 532.00 mi.

2016 Cadillac XTS vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2016 Acura RLX20 mpg31 mpg24 mpg18.5 gal.370.00 / 573.50 mi.
2016 Audi A620 - 24 mpg30 - 35 mpg24 - 28 mpg19.8 gal.396.00 / 574.20 - 475.20 / 673.20 mi.
2016 BMW 7 Series16 - 21 mpg25 - 29 mpg19 - 24 mpg20.6 gal.329.60 / 515.00 - 432.60 / 597.40 mi.
2016 Hyundai Genesis15 - 18 mpg23 - 29 mpg18 - 22 mpg20.3 gal.304.50 / 466.90 - 365.40 / 588.70 mi.
2016 Kia K90015 - 17 mpg23 - 26 mpg18 - 20 mpg19.8 gal.297.00 / 455.40 - 336.60 / 514.80 mi.
2016 Lincoln MKZ22 mpg31 - 33 mpg25 - 26 mpg16.5 - 17.5 gal.363.00 / 544.50 - 385.00 / 542.50 mi.
2016 Mercedes-Benz CLS-Class17 - 20 mpg25 - 30 mpg20 - 24 mpg21.1 gal.358.70 / 527.50 - 422.00 / 633.00 mi.
2016 Porsche Panamera15 - 18 mpg24 - 28 mpg18 - 22 mpg21.1 - 26.4 gal.358.70 / 569.70 - 448.80 / 712.80 mi.
2016 Cadillac XTS 14 (2015) - 18 mpg21 - 28 mpg17 - 22 mpg19 - 20 gal.266.00 / 399.00 - 342.00 / 532.00 mi.
2016 Jaguar XJ15 - 18 mpg23 - 27 mpg18 - 21 mpg21.7 gal.316.50 / 485.30 - 379.80 / 569.70 mi.
2016 Lincoln MKS16 - 17 mpg24 - 26 mpg19 - 20 mpg19 gal.304.00 / 456.00 - 323.00 / 494.00 mi.

2015 Cadillac XTS MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Platinum 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Platinum 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
Premium 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Premium 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Luxury 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
Armored 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.-
Funeral Coach 4dr Sedan (3.6L 6cyl 6A)14 mpg21 mpg17 mpg19 gal.266.00 / 399.00 mi.
Limousine 4dr Sedan (3.6L 6cyl 6A)14 mpg21 mpg17 mpg19 gal.266.00 / 399.00 mi.
Livery Package 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.342.00 / 532.00 mi.
Stretch Livery 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.342.00 / 532.00 mi.

2015 Cadillac XTS vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2015 Audi A818 - 19 mpg29 - 30 mpg23 - 24 mpg21.7 gal.390.60 / 651.00 - 412.30 / 629.30 mi.
2015 Lincoln MKS17 - 19 mpg25 - 28 mpg21 - 23 mpg19 gal.323.00 / 475.00 - 361.00 / 532.00 mi.
2015 Acura RLX20 mpg31 mpg24 - 25 mpg18.5 gal.370.00 / 573.50 mi.
2015 Audi A617 - 25 mpg27 - 33 mpg20 - 29 mpg19.8 gal.356.40 / 534.60 - 495.00 / 653.40 mi.
2015 BMW 7 Series13 - 19 mpg20 - 29 mpg16 - 24 mpg21.1 gal.274.30 / 422.00 - 400.90 / 611.90 mi.
2015 Hyundai Genesis15 - 18 mpg23 - 29 mpg19 - 23 mpg20.3 gal.304.50 / 466.90 - 365.40 / 588.70 mi.
2015 Kia K90015 mpg23 mpg19 mpg19.8 gal.297.00 / 455.40 mi.
2015 Lincoln MKZ22 mpg31 - 33 mpg26 - 27 mpg16.5 - 17.5 gal.363.00 / 544.50 - 385.00 / 542.50 mi.
2015 Audi A716 - 18 mpg27 - 28 mpg19 - 23 mpg19.8 gal.356.40 / 554.40 mi.
2015 Mercedes-Benz CLS-Class17 - 20 mpg24 - 30 mpg20 - 25 mpg21.1 gal.358.70 / 506.40 - 422.00 / 633.00 mi.
2015 Porsche Panamera17 - 18 mpg26 - 28 mpg21 - 23 mpg21.1 - 26.4 gal.-
2015 Cadillac XTS14 - 18 mpg21 - 28 mpg17 - 23 mpg18.6 - 19.5 gal.266.00 / 399.00 - 342.00 / 532.00 mi.
2015 Hyundai Equus15 mpg23 mpg19 mpg20.3 gal.-
2015 Jaguar XJ15 - 18 mpg23 - 27 mpg19 - 22 mpg21.7 gal.325.50 / 499.10 - 390.60 / 585.90 mi.

2014 Cadillac XTS MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Platinum 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg20 mpg20 gal.340.00 / 520.00 mi.
Platinum 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
Premium 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Premium 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Luxury 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg23 mpg18.6 gal.342.00 / 532.00 mi.
Armored 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.-
Funeral Coach 4dr Sedan (3.6L 6cyl 6A)15 mpg21 mpg17 mpg19 gal.-
Limousine 4dr Sedan (3.6L 6cyl 6A)15 mpg21 mpg17 mpg19 gal.-
Livery Package 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.-
Stretch Livery 4dr Sedan (3.6L 6cyl 6A)18 mpg28 mpg21 mpg19 gal.-

2014 Cadillac XTS vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2014 Mercedes-Benz CLS-Class18 mpg25 - 27 mpg21 - 22 mpg21.1 gal.379.80 / 527.50 mi.
2014 Porsche Panamera17 - 18 mpg26 - 28 mpg21 - 23 mpg21.1 - 26.4 gal.358.70 / 569.70 - 448.80 / 712.80 mi.
2014 Cadillac XTS15 - 18 mpg21 - 28 mpg17 - 23 mpg18.6 - 20 gal.340.00 / 520.00 - 342.00 / 532.00 mi.
2014 Hyundai Equus15 mpg23 mpg19 mpg20.3 gal.304.50 / 466.90 mi.
2014 Jaguar XJ15 - 18 mpg23 - 27 mpg18 - 22 mpg21.7 gal.325.50 / 499.10 - 390.60 / 585.90 mi.
2014 Mercedes-Benz E-Class17 - 21 mpg26 - 30 mpg21 - 25 mpg21.1 gal.358.70 / 548.60 - 443.10 / 611.90 mi.
2014 Audi A817 - 18 mpg28 mpg22 - 23 mpg23.8 gal.404.60 / 666.40 - 428.40 / 666.40 mi.
2014 Lincoln MKS17 - 19 mpg25 - 28 mpg21 - 23 mpg19 gal.323.00 / 475.00 - 361.00 / 532.00 mi.
2014 Acura RLX20 mpg31 mpg24 - 25 mpg18.5 gal.370.00 / 573.50 mi.
2014 Audi A618 - 25 mpg27 - 33 mpg22 - 29 mpg19.8 gal.356.40 / 534.60 - 495.00 / 653.40 mi.
2014 BMW 7 Series13 - 19 mpg20 - 29 mpg16 - 24 mpg21.1 gal.274.30 / 422.00 - 400.90 / 611.90 mi.
2014 Hyundai Genesis15 - 18 mpg23 - 27 mpg19 - 22 mpg19.3 - 20.3 gal.304.50 / 466.90 - 347.40 / 521.10 mi.
2014 Lexus LS 46016 mpg23 - 24 mpg19 - 20 mpg22.2 gal.355.20 / 510.60 mi.
2014 Lincoln MKZ22 mpg31 - 33 mpg26 - 27 mpg16.5 - 17.5 gal.363.00 / 544.50 - 385.00 / 542.50 mi.
2014 Audi A718 mpg28 mpg21 - 23 mpg19.8 gal.356.40 / 554.40 mi.

2013 Cadillac XTS MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Platinum 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Platinum 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg22 mpg18.6 gal.323.00 / 532.00 mi.
Premium 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Premium 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg22 mpg18.6 gal.323.00 / 532.00 mi.
Luxury 4dr Sedan AWD (3.6L 6cyl 6A)17 mpg26 mpg21 mpg19.5 gal.340.00 / 520.00 mi.
Luxury 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg22 mpg18.6 gal.323.00 / 532.00 mi.
4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg22 mpg18.6 gal.323.00 / 532.00 mi.
Professional 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg21 mpg19 gal.323.00 / 532.00 mi.
Livery Package 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg21 mpg19 gal.323.00 / 532.00 mi.
Armored 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg21 mpg19 gal.-
Funeral Coach 4dr Sedan (3.6L 6cyl 6A)15 mpg21 mpg17 mpg19 gal.-
Limousine 4dr Sedan (3.6L 6cyl 6A)15 mpg21 mpg17 mpg19 gal.-
Stretch Livery 4dr Sedan (3.6L 6cyl 6A)17 mpg28 mpg21 mpg19 gal.363.00 / 511.50 mi.

2013 Cadillac XTS vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2013 Volvo S8018 - 19 mpg25 - 28 mpg21 - 23 mpg18.5 gal.333.0/462.5 - 351.50 / 518.00 mi.
2013 Cadillac XTS15 - 17 mpg21 - 28 mpg17 - 22 mpg18.6 - 19.5 gal.323.00 / 532.00 - 340.00 / 520.00 mi.
2013 Infiniti M37x17 mpg24 mpg20 mpg20 gal.340.0/480.0 mi.
2013 Lincoln MKS17 - 18 mpg25 - 27 mpg21 - 22 mpg19 gal.323.00 / 475.00 - 342.00 / 513.00 mi.
2013 Audi A618 - 25 mpg27 - 33 mpg22 - 29 mpg19.8 gal.356.40 / 534.60 - 495.00 / 653.40 mi.
2013 Lexus LS 46016 mpg23 - 24 mpg19 - 20 mpg22.2 gal.-
2013 Lincoln MKZ22 mpg31 - 33 mpg26 - 27 mpg16.5 - 17.5 gal.363.00 / 511.50 mi.

Important 2018 Cadillac XTS Links: