2010 Cadillac STS — 4.6L 8-cyl, S6 automatic, RWD
This 2010 Cadillac STS (4.6L 8-cyl, S6 automatic, RWD) takes regular (87-octane) gasoline. REGULAR
18
MPG combined (15 city / 24 hwy)
$3,450
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 2010 Cadillac STS trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 3.6L 6-cyl, S6 automatic, RWD | REGULAR | 21 | $2,950 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.