Gallonly
2018 Cadillac CTS 3.6 Luxury AWD
Shown: 2018 Cadillac CTS 3.6 Luxury AWD. Photo: Elise240SX, CC BY-SA 4.0, via Wikimedia Commons
  • Gas
  • Midsize cars
  • MY2003–2019

Cadillac CTS MPG & Fuel Cost by Year

17 model years · 2003–2019

25 MPG
Combined
22 MPG
City
30 MPG
Highway
Annual cost · MY2019 CTS 2.0L 4-cyl turbo RWD
$3,200

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

All Cadillac models

Cadillac CTS fuel economy at a glance

EPA has rated the Cadillac CTS for 17 model years, 2003 to 2019. Across those years its combined rating runs 14–25 MPG. The latest model year, 2019, has 6 configurations rated 16–25 MPG combined and costing $2,900–$4,900 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2003 is the 2019 CTS 2.0L 4-cyl turbo RWD, at 25 MPG.

Cadillac CTS MPG by year

14161820222426 2003200820142019 Gas 14161820222426 2003200820142019 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Cadillac CTS: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2014-2019 (3rd gen) Generation page
2019 16–25 $2,900–$4,900
2018 19–25 $2,760–$4,230
2017 17–25 $2,760–$4,800
2016 17–25 $2,780–$4,820
2015 14–24 $2,750–$5,780
2014 14–23 $2,820–$5,680
2008-2013 (2nd gen) Generation page
2013 14–21 $3,040–$5,800
2012 14–21 $3,040–$5,630
2011 14–21 $3,040–$5,720
2010 14–22 $2,970–$5,740
2009 19–21 $3,110–$3,440
2008 19–21 $3,110–$3,440
2003-2007 (1st gen) Generation page
2007 16–19 $3,440–$5,020
2006 17–19 $3,440–$4,730
2005 16–19 $3,440–$5,020
2004 17–19 $3,440–$4,730
2003 19 $4,230

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Cadillac CTS generations

3 generations between 2003 and 2019. Open one for the table of every model year and configuration.

2019 powertrain options

Gas · 2.0L, 3.6L, 6.2L
Combined
16–25 MPG
Per year
$2,900–$4,900
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Cadillac CTS's gas mileage by year?

EPA combined ratings for the Cadillac CTS run 14–25 MPG across model years 2003 to 2019. The latest year, 2019, is rated 16–25 MPG.

Which Cadillac CTS model year has the best gas mileage?

The 2019 Cadillac CTS CTS 2.0L 4-cyl turbo RWD has the highest combined rating since 2003, at 25 MPG.

How much does a Cadillac CTS cost to fuel per year?

For MY2019, EPA-rated configurations cost $2,900–$4,900 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,200.

Has the Cadillac CTS's fuel economy improved over time?

Yes. The most efficient configuration moved from 19 MPG in 2003 to 25 MPG in 2019, 6 MPG more.

Which Cadillac CTS model years have the same ratings?

EPA lists identical ratings as the previous year for 2009. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.

How many generations of the Cadillac CTS are there?

EPA data covers 3 generations of the Cadillac CTS: 2014-2019, 2008-2013, 2003-2007. Each has its own page with a table for every model year.