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2021 GMC Terrain FWD — 1.5L 4-cyl, Automatic 9-spd, FWD
This 2021 GMC Terrain FWD (1.5L 4-cyl, Automatic 9-spd, FWD) takes regular (87-octane) gasoline. REGULAR
27
MPG combined (25 city / 30 hwy)
$2,111
est. fuel cost / year (today’s prices, 15k mi)
329 g/mi
tailpipe CO₂
At today's AAA national average price ($3.80/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.
EPA fuel type: Regular · class: Small Sport Utility Vehicle 2WD · engine: 1.5L 4-cyl turbo · transmission: Automatic 9-spd · drive: FWD · MPG retrieved 2026-07-24.