2018 Cadillac CTS — 3.6L 6-cyl, S8 automatic, RWD
This 2018 Cadillac CTS (3.6L 6-cyl, S8 automatic, RWD) takes regular (87-octane) gasoline. REGULAR
24
MPG combined (20 city / 30 hwy)
$2,600
est. fuel cost / year (EPA, 15k mi)
376 g/mi
tailpipe CO₂
Other 2018 Cadillac CTS trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.0L 4-cyl, S8 automatic, RWD | PREMIUM | 25 | $3,100 |
| 3.6L 6-cyl, S8 automatic, RWD | PREMIUM | 19 | $4,050 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.