FuelFacts

← all 2020 GMC Terrain FWD trims

2020 GMC Terrain FWD — 1.5L 4-cyl, Automatic 9-spd, FWD

This 2020 GMC Terrain FWD (1.5L 4-cyl, Automatic 9-spd, FWD) takes regular (87-octane) gasoline. REGULAR

27
MPG combined (26 city / 30 hwy)
$2,111
est. fuel cost / year (today’s prices, 15k mi)
325 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.

Other 2020 GMC Terrain FWD trims

TrimFuelMPGFuel/yr
2.0L 4-cyl, Automatic 9-spd, FWDPREMIUM24$2,925

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.