- Gas
- Large cars
- MY2006–2011
Cadillac DTS MPG & Fuel Cost by Year
6 model years · 2006–2011
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cadillac DTS fuel economy at a glance
EPA has rated the Cadillac DTS for 6 model years, 2006 to 2011. Across those years its combined rating runs 18 MPG. The latest model year, 2011, has 1 configuration rated 18 MPG combined and costing $3,640 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2006 is the 2011 DTS 4.6L 8-cyl FWD, at 18 MPG.
Cadillac DTS MPG by year
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 DTS generations
1 generations between 2006 and 2011. Open one for the table of every model year and configuration.
2011 powertrain options
More Cadillac models
Frequently asked questions
What is the Cadillac DTS's gas mileage by year?
EPA combined ratings for the Cadillac DTS run 18 MPG across model years 2006 to 2011. The latest year, 2011, is rated 18 MPG.
Which Cadillac DTS model year has the best gas mileage?
The 2011 Cadillac DTS DTS 4.6L 8-cyl FWD has the highest combined rating since 2006, at 18 MPG.
How much does a Cadillac DTS cost to fuel per year?
For MY2011, EPA-rated configurations cost $3,640 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,640.
Has the Cadillac DTS's fuel economy improved over time?
Not much. The most efficient configuration is rated 18 MPG in both 2006 and 2011.
Which Cadillac DTS model years have the same ratings?
EPA lists identical ratings as the previous year for 2007, 2008, 2009, 2010. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.