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2018 GMC Sierra 15 Hybrid 4WD — 5.3L 8-cyl, Automatic 8-spd, 4WD
This 2018 GMC Sierra 15 Hybrid 4WD (5.3L 8-cyl, Automatic 8-spd, 4WD) takes regular (87-octane) gasoline. REGULAR
18
MPG combined (16 city / 21 hwy)
$3,450
est. fuel cost / year (EPA, 15k mi)
490 g/mi
tailpipe CO₂
EPA fuel type: Regular · class: Standard Pickup Trucks 4WD · retrieved 2026-06-14.