Cadillac STS Specs, MPG & Trims by Year
EPA fuel-economy and specification data for the Cadillac STS, model years 2005–2011. The latest model year is shown first below.
Latest model year: 2011
- Body class
- Midsize Cars
- Drive
- Rear-Wheel Drive, All-Wheel Drive
- Engine
- 6-cyl, 3.6 L
- Fuel type
- Regular Gasoline
- Configurations
- 2
- Combined MPG
- 21 MPG
- Annual fuel cost
- $3,200
View the full 2011 Cadillac STS specs, MPG and trims
Across all 7 model years, EPA combined ratings span 16–21 MPG.
All model years
| Year | Body class | Combined | Configurations | Annual fuel cost |
|---|---|---|---|---|
| 2011 | Midsize Cars | 21 MPG | 2 | $3,200 |
| 2010 | Midsize Cars | 17–21 MPG | 4 | $3,200–$3,950 |
| 2009 | Midsize Cars | 17–20 MPG | 4 | $3,350–$4,850 |
| 2008 | Midsize Cars | 16–20 MPG | 4 | $3,350–$5,150 |
| 2007 | Midsize Cars | 16–19 MPG | 4 | $3,550–$5,150 |
| 2006 | Midsize Cars | 17–19 MPG | 4 | $3,550–$4,850 |
| 2005 | Midsize Cars | 17–18 MPG | 3 | $3,700–$4,850 |