Based on data from 98 vehicles, 8,547 fuel-ups and 2,534,887 miles of driving, the 2012 GMC Terrain gets a combined Avg MPG of 20.83 with a 0.09 MPG margin of error.

Any Engine Type 2.4L L4 FLEX (21) 2.4L L4 GAS (25) 3.0L V6 FLEX (12) 3.0L V6 GAS (17) H2 GAS (1) L4 GAS (13) V6 GAS (1) Any Body Style Sedan (1) Sport Utility (28) Any Submodel SLT (41) SLE (42) Other (15)

Below you can see a distribution of the fuel-ups with 203 outliers (2.32%) removed.

Following shows the average MPG of each of the 98 vehicles in the system.

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• Terri Terrain

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Feb 2020 • 34 Fuel-ups

  Property of ATFamaly

• 22.2 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed
  Added Mar 2020 • 129 Fuel-ups

  Property of brichter21

• 18.3 Avg MPG

• GMC Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Jan 2018 • 543 Fuel-ups

  Property of webster18

• 24.6 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2017 • 259 Fuel-ups

  Property of njlay

• 20.0 Avg MPG

• GMC Terrain

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed Sport Utility
  Added May 2018 • 168 Fuel-ups

  Property of Alikhaneng

• 20.4 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed
  Added Aug 2020 • 12 Fuel-ups

  Property of kumar9911

• 19.6 Avg MPG

• 2012 GMC Terrain

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2018 • 130 Fuel-ups

  Property of rcsctracer

• 20.6 Avg MPG

• Our Car

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jul 2019 • 29 Fuel-ups

  Property of jernme

• 21.1 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed Sport Utility
  Added Jul 2018 • 36 Fuel-ups

  Property of Pauly_B

• 19.0 Avg MPG

• 2012 Terrain

  2012 GMC Terrain SLE 3.0L V6 GAS Automatic 6 Speed
  Added Oct 2016 • 269 Fuel-ups

  Property of stph9

• 18.3 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed
  Added Apr 2021 • 98 Fuel-ups

  Property of NightPig21

• 18.7 Avg MPG

• Terrain

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Apr 2018 • 200 Fuel-ups

  Property of fischer_m_a

• 22.3 Avg MPG

• GMC TERRAIN SLT

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed
  Added Apr 2017 • 147 Fuel-ups

  Property of MILESRICK

• 18.4 Avg MPG

• My Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Jun 2015 • 248 Fuel-ups

  Property of jvieira

• 21.9 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Aug 2022 • 3 Fuel-ups

  Property of JPGrauherr

• 21.3 Avg MPG

• Terrain

  2012 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Aug 2016 • 179 Fuel-ups

  Property of Ginkgo

• 19.3 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Feb 2020 • 12 Fuel-ups

  Property of gmc2012

• 15.3 Avg MPG

• Mrs Fear

  2012 GMC Terrain SLE Automatic 6 Speed Sport Utility
  Added Mar 2019 • 36 Fuel-ups

  Property of Fearcar

• 28.1 Avg MPG

• My Terrain (odometer is messed)

  2012 GMC Terrain SLT 3.0L V6 GAS Automatic 6 Speed
  Added Apr 2021 • 5 Fuel-ups

  Property of NightPig21

• 16.0 Avg MPG

• Terrain

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Dec 2014 • 26 Fuel-ups

  Property of ramesh457

• 17.5 Avg MPG

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