← all 2015 Buick LaCrosse trims
2015 Buick LaCrosse — 3.6L 6-cyl, S6 automatic, FWD
This 2015 Buick LaCrosse (3.6L 6-cyl, S6 automatic, FWD) takes regular (87-octane) gasoline. REGULAR
21
MPG combined (18 city / 28 hwy)
$2,950
est. fuel cost / year (EPA, 15k mi)
419 g/mi
tailpipe CO₂
Other 2015 Buick LaCrosse trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 3.6L 6-cyl, S6 automatic, FWD | FLEX-FUEL | 21 | $2,950 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.