Cadillac STS MPG by Year
| Year | Combined | Fuel | Cost per 100 miles | Trims | Recalls |
|---|---|---|---|---|---|
| 2011 | 21 | Regular gasoline | $19.38 | 2 | – |
| 2010 | 17–21 | Regular gasoline | $19.38 | 4 | – |
| 2009 | 17–20 | Premium gasoline, Regular gasoline | $24.96 | 4 | – |
| 2008 | 16–20 | Premium gasoline, Regular gasoline | $24.96 | 4 | – |
| 2007 | 16–19 | Premium gasoline, Regular gasoline | $26.27 | 4 | – |
| 2006 | 17–19 | Premium gasoline, Regular gasoline | $26.27 | 4 | – |
| 2005 | 17–18 | Premium gasoline, Regular gasoline | $27.73 | 3 | – |
Fuel economy: U.S. EPA fueleconomy.gov