2018 · Midsize Car · Gas

2018 Cadillac CTS MPG & fuel economy

The 2018 Cadillac CTS is a midsize car offered in 5 EPA-rated configurations. The most efficient version returns 24 MPG combined (20 city / 30 highway) on regular gasoline. Across the lineup, combined ratings range from 19 to 25 MPG. Efficiency is unchanged from the 2017 model. Among 74 midsize cars rated for 2018, it ranks 41st for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $1,938 a year to fuel.

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Combined 24 MPG 20 MPG city · 30 MPG hwy

Driving range — not published for this model

Your fuel cost $1,938 15,000 mi/yr · $12.92 per 100 mi

Class rank, 2018 #41 of 74 Midsize Cars by fuel cost

What will it cost you?

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

Miles per year Regular gas $/gal Premium gas $/gal

Fuel average

The 2018 Cadillac CTS's fuel average is 10.2 km/L (9.8 L/100 km), or 24 MPG combined: 8.5 km/L in the city and 12.8 km/L on the highway.

	MPG	km/L	L/100 km
City	20	8.5	11.8
Highway	30	12.8	7.8
Combined	24	10.2	9.8

How it ranks among 2018 Midsize Cars

Full class ranking →

1Hyundai Ioniq EV136 MPGe $675
2Tesla Model 3130 MPGe $699
3Toyota Prius Prime133 MPGe + 54 MPG $763
4Honda Clarity EV114 MPGe $796
5Nissan Leaf112 MPGe $810
···
41Cadillac CTS24 MPG $1,938
···
74Honda Clarity68 MPGe $7,941

2018 CTSOther midsize carsClass median: $1,921/yr

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

CTS MPG across model years

Full history →

5 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
RWD · 3.6L 6-cyl · 8-speed automatic CTS	Gas	20 MPG	30 MPG	24 MPG	—	$1,938
AWD · 3.6L 6-cyl · 8-speed automatic CTS AWD	Gas	19 MPG	27 MPG	22 MPG	—	$2,114
RWD · 2.0L 4-cyl turbo · 8-speed automatic CTS	Gas	22 MPG	30 MPG	25 MPG	—	$2,370
AWD · 2.0L 4-cyl turbo · 8-speed automatic CTS AWD	Gas	21 MPG	29 MPG	24 MPG	—	$2,469
RWD · 3.6L 6-cyl turbo · 8-speed automatic CTS	Gas	16 MPG	24 MPG	19 MPG	—	$3,118

Specs (most efficient configuration)

Fuel: Regular gasoline
Engine / motor: 3.6L 6-cyl
Transmission: 8-speed automatic
Drivetrain: RWD
Passenger volume: 97 cu ft
Cargo volume: 13 cu ft
Tailpipe CO₂: 376 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2018 Cadillac CTS vs. rivals

vs Lincoln MKZ 24 MPG · $1,938/yr Same fuel cost vs Lexus GS Hybrid 31 MPG · $1,911/yr GS Hybrid saves $26/yr vs Lexus ES 24 MPG · $1,938/yr Same fuel cost vs BMW 5 Series Diesel 30 MPG · $1,850/yr 5 Series Diesel saves $88/yr vs Jaguar XF 28 MPG · $2,116/yr CTS saves $179/yr vs Audi A6 28 MPG · $2,116/yr CTS saves $179/yr vs Jaguar XF Diesel 35 MPG · $1,586/yr XF Diesel saves $352/yr vs Tesla Model 3 130 MPGe · $699/yr Model 3 saves $1,238/yr

Compare the 2018 CTS

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Frequently asked questions

What is the gas mileage of the 2018 Cadillac CTS?

Up to 24 MPG combined (20 city / 30 highway); ratings range from 19 to 25 MPG depending on configuration.

What fuel does the 2018 Cadillac CTS use?

Regular gasoline.

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