Based on data from 99 vehicles, 8,709 fuel-ups and 2,583,882 miles of driving, the 2012 GMC Terrain gets a combined Avg MPG of 20.84 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 (18) H2 GAS (1) L4 GAS (13) V6 GAS (1) Any Body Style Sedan (1) Sport Utility (28) Any Submodel SLE (42) SLT (42) Other (15)

Below you can see a distribution of the fuel-ups with 205 outliers (2.30%) removed.

Following shows the average MPG of each of the 99 vehicles in the system.

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• White Terrain ... Retired 10-1-2014

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

  Property of rockbob13

• 24.0 Avg MPG

• Terrain

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed Sport Utility
  Added Sep 2012 • 132 Fuel-ups

  Property of Averatized

• 20.7 Avg MPG

• My GMC Terrain

  2012 GMC Terrain GAS L4
  Added Feb 2012 • 133 Fuel-ups

  Property of Terrainasaurus

• 26.4 Avg MPG

• SUV

  2012 GMC Terrain SLT Automatic 6 Speed
  Added Sep 2016 • 361 Fuel-ups

  Property of wabash

• 22.1 Avg MPG

• GMC Terrain

  2012 GMC Terrain GAS L4
  Added May 2012 • 24 Fuel-ups

  Property of euroglx

• 22.1 Avg MPG

• Mr. T

  2012 GMC Terrain GAS L4
  Added Apr 2013 • 8 Fuel-ups

  Property of TheFloridian

• 24.8 Avg MPG

• Terrain

  2012 GMC Terrain GAS L4
  Added Jan 2013 • 21 Fuel-ups

  Property of Garowetz

• 25.2 Avg MPG

• Gmc

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Sep 2016 • 15 Fuel-ups

  Property of kujo569

• 19.5 Avg MPG

• Slate Blue Terrain

  2012 GMC Terrain GAS L4
  Added Mar 2012 • 72 Fuel-ups

  Property of BDTMTGT

• 21.2 Avg MPG

• quicksilver

  2012 GMC Terrain GAS V6
  Added Aug 2012 • 16 Fuel-ups

  Property of labeck

• 31.1 Avg MPG

• t

  2012 GMC Terrain GAS L4
  Added Dec 2012 • 38 Fuel-ups

  Property of JT2012

• 26.5 Avg MPG

• Terri

  2012 GMC Terrain GAS L4
  Added Mar 2012 • 58 Fuel-ups

  Property of dajoalmasa

• 25.2 Avg MPG

• Terrain

  2012 GMC Terrain GAS L4
  Added Mar 2012 • 38 Fuel-ups

  Property of dopper

• 22.6 Avg MPG

• GMC Terrain

  2012 GMC Terrain GAS L4
  Added Dec 2011 • 40 Fuel-ups

  Property of mlbrag

• 24.1 Avg MPG

• FWD 2.4 Terrain

  2012 GMC Terrain GAS L4
  Added Aug 2012 • 6 Fuel-ups

  Property of bfal

• 23.9 Avg MPG

• T-Rain

  2012 GMC Terrain GAS L4
  Added Jul 2012 • 45 Fuel-ups

  Property of BobLoblaw

• 22.0 Avg MPG

• Alamo Summer

  2012 GMC Terrain
  Added Jun 2012 • 6 Fuel-ups

  Property of szt5hi

• 27.0 Avg MPG

• Marion

  2012 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Sep 2016 • 19 Fuel-ups

  Property of OilManIzzy

• 23.3 Avg MPG

• the box

  2012 GMC Terrain GAS L4
  Added Feb 2012 • 7 Fuel-ups

  Property of simsd

• 26.0 Avg MPG

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