Based on data from 98 vehicles, 8,554 fuel-ups and 2,537,085 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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• My Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Sep 2017 • 50 Fuel-ups

  Property of shelbs513

• 20.3 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed
  Added Oct 2017 • 3 Fuel-ups

  Property of Shwrtz

• 20.0 Avg MPG

• Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Sep 2016 • 237 Fuel-ups

  Property of DAXIEDOODLE

• 23.3 Avg MPG

• GMC Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed Sport Utility
  Added Jul 2013 • 293 Fuel-ups

  Property of lovebohn

• 25.4 Avg MPG

• Terrain

  2012 GMC Terrain SLT
  Added Nov 2016 • 12 Fuel-ups

  Property of Robert337

• 18.5 Avg MPG

• Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Jun 2017 • 60 Fuel-ups

  Property of pswood

• 24.8 Avg MPG

• Terrain

  2012 GMC Terrain SLE 2.4L L4 GAS
  Added Jan 2016 • 92 Fuel-ups

  Property of Kspour

• 23.1 Avg MPG

• The Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Jun 2017 • 333 Fuel-ups

  Property of kentanddana

• 4.6 Avg MPG

• The Beast

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added May 2016 • 84 Fuel-ups

  Property of zackviro

• 21.7 Avg MPG

• Terrain

  2012 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2016 • 11 Fuel-ups

  Property of kflanary

• 18.8 Avg MPG

• GMC

  2012 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 93 Fuel-ups

  Property of jacobianju

• 25.1 Avg MPG

• Terrain

  2012 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Oct 2016 • 88 Fuel-ups

  Property of jairocheco

• 25.6 Avg MPG

• Terrain

  2012 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Aug 2016 • 91 Fuel-ups

  Property of jairocheco

• 25.6 Avg MPG

• Turdrain

  2012 GMC Terrain SLT 3.0L V6 FLEX Automatic 6 Speed Sport Utility
  Added Oct 2015 • 3 Fuel-ups

  Property of ESUgrad10

• 19.4 Avg MPG

• Buster

  2012 GMC Terrain SLE Automatic 6 Sport Utility (4 Door)
  Added Sep 2013 • 90 Fuel-ups

  Property of lrt2011

• 25.1 Avg MPG

• Terrain AWD

  2012 GMC Terrain SLT 2.4L FLEX L4 Automatic 6
  Added Dec 2014 • 12 Fuel-ups

  Property of jrappasaurus

• 21.6 Avg MPG

• My Terrain

  2012 GMC Terrain SLT 3.0L GAS V6 Automatic 6 Sport Utility (4 Door)
  Added Oct 2014 • 20 Fuel-ups

  Property of dennisharley

• 38.4 Avg MPG

• Terrain AWD V6

  2012 GMC Terrain SLT 3.0L GAS V6 Automatic 6 Sport Utility (4 Door)
  Added Oct 2014 • 4 Fuel-ups

  Property of epikphailure

• 18.8 Avg MPG

• 2012 Terrain

  2012 GMC Terrain GAS L4
  Added Nov 2011 • 99 Fuel-ups

  Property of Hawk

• 23.3 Avg MPG

• White Terrain ... Retired 10-1-2014

  2012 GMC Terrain SLT
  Added Jun 2012 • 272 Fuel-ups

  Property of rockbob13

• 24.0 Avg MPG

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