Based on data from 66 vehicles, 4,899 fuel-ups and 1,511,695 miles of driving, the 2013 GMC Terrain gets a combined Avg MPG of 21.56 with a 0.12 MPG margin of error.

Any Engine Type 2.4L L4 FLEX (15) 2.4L L4 GAS (30) 3.6L V6 FLEX (6) 3.6L V6 GAS (5) L4 GAS (3) V6 GAS (3) Any Body Style Sport Utility (16) Any Submodel Denali (7) SLT (19) SLE (32) Other (8)

Below you can see a distribution of the fuel-ups with 169 outliers (3.33%) removed.

Following shows the average MPG of each of the 66 vehicles in the system.

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• GMC Terrain

  2013 GMC Terrain SLE 3.6L V6 GAS Automatic 6 Speed
  Added Jan 2018 • 7 Fuel-ups

  Property of trendsetter

• 20.1 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Jan 2017 • 57 Fuel-ups

  Property of stewee

• 17.9 Avg MPG

• T-Rex

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 13 Fuel-ups

  Property of sosa1

• 19.5 Avg MPG

• My Terrain

  2013 GMC Terrain SLT 3.6L V6 FLEX Automatic 6 Speed
  Added May 2017 • 30 Fuel-ups

  Property of ddanahy

• 20.2 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2015 • 20 Fuel-ups

  Property of Kevin21

• 27.4 Avg MPG

• Rook

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2015 • 8 Fuel-ups

  Property of Palomino

• 21.5 Avg MPG

• GMC Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2016 • 63 Fuel-ups

  Property of JEPartrick

• 22.4 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Jun 2016 • 44 Fuel-ups

  Property of Alaska-Terrain

• 20.6 Avg MPG

• GT2013

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Nov 2013 • 107 Fuel-ups

  Property of gain74

• 23.0 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Sport Utility (4 Door)
  Added Aug 2015 • 12 Fuel-ups

  Property of jonathans1863

• 20.9 Avg MPG

• Terrain

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2018 • 84 Fuel-ups

  Property of calix0817

• 24.4 Avg MPG

• Terrain

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Aug 2013 • 75 Fuel-ups

  Property of kernelpanic911

• 27.0 Avg MPG

• Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Sep 2016 • 71 Fuel-ups

  Property of rsprim

• 26.0 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 2.4L FLEX L4 Automatic 6 Sport Utility (4 Door)
  Added Jan 2015 • 75 Fuel-ups

  Property of cverby

• 21.7 Avg MPG

• 13GMC

  2013 GMC Terrain GAS V6
  Added Dec 2012 • 75 Fuel-ups

  Property of MY13GMC

• 21.6 Avg MPG

• GMC Terrain

  2013 GMC Terrain Denali
  Added Dec 2012 • 69 Fuel-ups

  Property of Litt24

• 20.9 Avg MPG

• Terrain Denali AWD

  2013 GMC Terrain Denali 2.4L FLEX L4 Automatic 6 Sport Utility (4 Door)
  Added May 2013 • 71 Fuel-ups

  Property of rtreece

• 23.8 Avg MPG

• Terrain

  2013 GMC Terrain GAS L4
  Added Feb 2014 • 25 Fuel-ups

  Property of zhuz

• 22.7 Avg MPG

• Terrain V6

  2013 GMC Terrain
  Added Mar 2013 • 41 Fuel-ups

  Property of reecer

• 19.7 Avg MPG

• terrain

  2013 GMC Terrain GAS V6
  Added Apr 2014 • 4 Fuel-ups

  Property of kelsiet122

• 21.7 Avg MPG

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