MPG by Model

MakesGMCTerrain

GMC Terrain MPG

Its best-rated version reaches 32 MPG combined in 2018–2019, the diesel Terrain AWD. Its weakest year peaked at 25 MPG (2017).

GMC Terrain: best and lowest EPA combined MPG of its versions, model years 2010–20261520253035MPG20132018201020152020202632 MPG peaklowest peak 25GMC Terrain: best and lowest EPA combined MPG by model year1520253035MPG201020122014201620182020202220242026
lowest to best versionbest versionmedian of its classengine list turned over
555.6 gal

a year at 15,000 miles for the best 2026 version, the Terrain FWD. Put it next to its 2010 predecessor, at your own mileage.

Compare in gallons

The GMC Terrain has EPA ratings for 17 model years, 2010–2026, most often among small SUVs. Its best version ranked second (tied) of 55 small SUVs in 2018, behind the class leader, the Nissan Rogue, and it placed in its class top five in three model years.

The first diesel version of the Terrain arrived in 2018, when 8 of 91 SUVs offered one. Of the 249 SUV nameplates on this site, few have had a diesel version (24 of them) or a flex-fuel version (36 of them); this one has.

Among 69 small SUVs, 2026

The Terrain placed 32nd (tied). The class leader was the Kia Niro at 53 MPG. The next higher rating, 28 MPG, is shared by five nameplates.

Best EPA combined MPG of each of the 69 small SUVs rated for 202620253035404550Terrain 27median 27NiroBest EPA combined MPG of each of the 69 small SUVs rated for 202620253035404550Terrain 27median 27

The Terrain, five years at a time

Average rating of its best version per span, placed in the class it sat in most often.

2009–13sixth of 88SUVs
2014–1814th of 50small SUVs
2019–2322nd of 70small SUVs
2024–2638th of 64small SUVs

Where the engine list turned over

  • 2013

    New: 3.6-liter 6-cylinder flex-fuel, 3.6-liter 6-cylinder. Best rating 26 → 26 MPG.

  • 2018

    New: 1.5-liter 4-cylinder, 1.6-liter 4-cylinder diesel, 2.0-liter 4-cylinder. Best rating 25 → 32 MPG.

Powertrains under the name

  • Gasoline

    Rated in 2010–2026.

  • Flex-fuel

    Rated in 2011–2017.

  • Diesel

    Rated in 2018–2019.

All 17 model years, best and lowest version
Model yearsBest versionCombinedCity / hwyLowest versionVersions
2026Terrain FWD2726 / 28253
2025Terrain FWD2726 / 28252
2024Terrain FWD2624 / 29252
2023Terrain AWD2624 / 29262
2021–2022Terrain FWD2725 / 30262
2020Terrain FWD2726 / 30234
2018–2019Terrain AWD diesel3228 / 39236
2017Terrain FWD2521 / 31185
2016Terrain FWD2622 / 31185
2015Terrain FWD flex-fuel2622 / 31195
2013–2014Terrain FWD2622 / 31198
2012Terrain FWD flex-fuel2622 / 31198
2011Terrain FWD2622 / 31196
2010Terrain FWD2622 / 32204

Version names in the EPA list: Terrain AWD, Terrain AWD Denali/AT4, Terrain FWD.

Same class, 2026

Kia Niro53 MPGFord Bronco Sport27 MPGMINI Countryman27 MPGMaserati Grecale20 MPG

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