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2018 Buick LaCrosse — 3.6L 6-cyl, S9 automatic, FWD
This 2018 Buick LaCrosse (3.6L 6-cyl, S9 automatic, FWD) takes regular (87-octane) gasoline. REGULAR
24
MPG combined (21 city / 30 hwy)
$2,600
est. fuel cost / year (EPA, 15k mi)
367 g/mi
tailpipe CO₂
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.