Based on data from 65 vehicles, 4,326 fuel-ups and 1,258,638 miles of driving, the 2011 GMC Terrain gets a combined Avg MPG of 21.78 with a 0.15 MPG margin of error.

Any Engine Type 2.4L L4 GAS (34) 3.0L V6 FLEX (7) GAS (1) L4 GAS (17) V6 GAS (4) Any Body Style Sport Utility (12) Any Submodel SLE (16) SLT (25) Other (24)

Below you can see a distribution of the fuel-ups with 259 outliers (5.65%) removed.

Following shows the average MPG of each of the 65 vehicles in the system.

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• My Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Feb 2012 • 170 Fuel-ups

  Property of ceavers30

• 19.2 Avg MPG

• My Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Jan 2020 • 62 Fuel-ups

  Property of TheWrights1405

• 21.5 Avg MPG

• Terrain

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

  Property of Madyar

• 19.2 Avg MPG

• Carla's BadBoy

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Aug 2020 • 3 Fuel-ups

  Property of CalgaryCowboy

• 28.8 Avg MPG

• My Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2019 • 45 Fuel-ups

  Property of FFDpoohbear

• 22.7 Avg MPG

• 2011 GMC Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Sep 2016 • 136 Fuel-ups

  Property of Ronniemac

• 12.1 Avg MPG

• Blue Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2011 • 462 Fuel-ups

  Property of MLL

• 23.7 Avg MPG

• Snow Bunny (GMC)

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Apr 2019 • 36 Fuel-ups

  Property of dennisoriley

• 21.3 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

• WNDSONG

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2017 • 57 Fuel-ups

  Property of romako

• 24.3 Avg MPG

• Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Oct 2016 • 192 Fuel-ups

  Property of hawkey

• 24.1 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

• GMC Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2015 • 68 Fuel-ups

  Property of HillbillySneaker

• 24.7 Avg MPG

• LINDAS GMC

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2019 • 3 Fuel-ups

  Property of Savage67

• 18.9 Avg MPG

• My Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Feb 2017 • 86 Fuel-ups

  Property of bwstyles7882

• 22.8 Avg MPG

• Terrain

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 44 Fuel-ups

  Property of katiem2113

• 29.0 Avg MPG

• Terrain ('11)

  2011 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2018 • 353 Fuel-ups

  Property of JIWatsonJr

• 22.3 Avg MPG

• My Terrain

  2011 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Jan 2018 • 45 Fuel-ups

  Property of tschorn6

• 18.5 Avg MPG

• GMC Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2017 • 363 Fuel-ups

  Property of MixPix

• 19.7 Avg MPG

• GMC Terrain

  2011 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 95 Fuel-ups

  Property of pennypen

• 23.6 Avg MPG

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