Based on data from 72 vehicles, 5,869 fuel-ups and 1,660,067 miles of driving, the 2011 GMC Terrain gets a combined Avg MPG of 21.40 with a 0.13 MPG margin of error.

Any Engine Type 2.4L L4 GAS (37) 3.0L V6 FLEX (10) GAS (1) L4 GAS (17) V6 GAS (4) Any Body Style Sport Utility (15) Any Submodel SLE (20) SLT (28) Other (24)

Below you can see a distribution of the fuel-ups with 179 outliers (2.96%) removed.

Following shows the average MPG of each of the 72 vehicles in the system.

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• Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Oct 2016 • 254 Fuel-ups

  Property of hawkey

• 23.2 Avg MPG

• Terrain

  2011 GMC Terrain SLE 3.0L V6 FLEX Automatic 6 Speed
  Added May 2021 • 105 Fuel-ups

  Property of mmccarthy

• 17.8 Avg MPG

• My Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2019 • 189 Fuel-ups

  Property of FFDpoohbear

• 21.8 Avg MPG

• Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Dec 2023 • 98 Fuel-ups

  Property of alfredviscsrra

• 22.3 Avg MPG

• Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Jun 2020 • 131 Fuel-ups

  Property of Madyar

• 20.3 Avg MPG

• GMC

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Oct 2024 • 9 Fuel-ups

  Property of EdDWho

• 16.5 Avg MPG

• 2011 GMC Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Sep 2016 • 172 Fuel-ups

  Property of Ronniemac

• 12.1 Avg MPG

• LINDAS GMC

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2019 • 18 Fuel-ups

  Property of Savage67

• 26.2 Avg MPG

• WNDSONG

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2017 • 132 Fuel-ups

  Property of romako

• 23.8 Avg MPG

• My Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Apr 2022 • 62 Fuel-ups

  Property of terrykaas

• 18.6 Avg MPG

• Snow Bunny (GMC)

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Apr 2019 • 147 Fuel-ups

  Property of dennisoriley

• 22.0 Avg MPG

• Carla's BadBoy

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Aug 2020 • 109 Fuel-ups

  Property of CalgaryCowboy

• 24.5 Avg MPG

• Rita

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Nov 2020 • 154 Fuel-ups

  Property of chefgeek

• 22.5 Avg MPG

• My Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Feb 2012 • 321 Fuel-ups

  Property of ceavers30

• 18.7 Avg MPG

• Blue Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2011 • 613 Fuel-ups

  Property of MLL

• 23.5 Avg MPG

• GMC Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2015 • 82 Fuel-ups

  Property of HillbillySneaker

• 24.7 Avg MPG

• Rose Mary Kor

  2011 GMC Terrain SLE Automatic 6 Speed Sport Utility
  Added Aug 2021 • 63 Fuel-ups

  Property of romako

• 27.4 Avg MPG

• My Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added May 2023 • 15 Fuel-ups

  Property of declanowen

• 22.5 Avg MPG

• Mom’s Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Aug 2020 • 8 Fuel-ups

  Property of Martynj

• 20.4 Avg MPG

• GMC Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Mar 2017 • 134 Fuel-ups

  Property of WD80PD

• 15.6 Avg MPG

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