Based on data from 38 vehicles, 3,087 fuel-ups and 880,629 miles of driving, the 2017 GMC Terrain gets a combined Avg MPG of 21.39 with a 0.15 MPG margin of error.

Any Engine Type 2.4L L4 FLEX (10) 2.4L L4 GAS (16) 3.6L V6 FLEX (1) 3.6L V6 GAS (10) Any Body Style Sport Utility (15) Any Submodel SL (3) SLT (7) Denali (8) SLE (20)

Below you can see a distribution of the fuel-ups with 98 outliers (3.08%) removed.

Following shows the average MPG of each of the 38 vehicles in the system.

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• 2017 - GMC - TERRAIN-SLT

  2017 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Feb 2018 • 451 Fuel-ups

  Property of mdcutting

• 25.6 Avg MPG

• My Terrain

  2017 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Feb 2020 • 116 Fuel-ups

  Property of rocksolidex

• 26.1 Avg MPG

• GMC Terrain

  2017 GMC Terrain SLT 3.6L V6 GAS Automatic 6 Speed
  Added Sep 2016 • 222 Fuel-ups

  Property of ilvikngfan

• 20.6 Avg MPG

• Terrain

  2017 GMC Terrain Denali 2.4L L4 FLEX Automatic 6 Speed
  Added Sep 2016 • 170 Fuel-ups

  Property of dlharris5

• 24.0 Avg MPG

• Terrain

  2017 GMC Terrain SLE 3.6L V6 GAS Automatic 6 Speed Sport Utility
  Added Dec 2019 • 54 Fuel-ups

  Property of main1

• 17.5 Avg MPG

• Ruby

  2017 GMC Terrain Denali 3.6L V6 FLEX Automatic 6 Speed
  Added Mar 2017 • 197 Fuel-ups

  Property of JesCo02

• 18.8 Avg MPG

• My Terrain

  2017 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Oct 2017 • 119 Fuel-ups

  Property of bandmomma

• 19.6 Avg MPG

• Lou's Terrian

  2017 GMC Terrain SLE 3.6L V6 GAS Automatic 6 Speed Sport Utility
  Added Jun 2019 • 43 Fuel-ups

  Property of luigi49221

• 21.4 Avg MPG

• My Terrain

  2017 GMC Terrain Denali 3.6L V6 GAS Automatic 6 Speed
  Added Nov 2019 • 79 Fuel-ups

  Property of bhock

• 18.2 Avg MPG

• Terrain

  2017 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2017 • 168 Fuel-ups

  Property of brubble

• 22.5 Avg MPG

• Terrain

  2017 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jul 2017 • 138 Fuel-ups

  Property of ericvw

• 24.4 Avg MPG

• WORK TERRAIN

  2017 GMC Terrain SL 2.4L L4 FLEX Automatic 6 Speed Sport Utility
  Added Jun 2018 • 247 Fuel-ups

  Property of shawdad

• 21.6 Avg MPG

• My Terrain

  2017 GMC Terrain Denali 3.6L V6 GAS Automatic 6 Speed
  Added Aug 2017 • 147 Fuel-ups

  Property of w0bm

• 21.0 Avg MPG

• Red Nightfall

  2017 GMC Terrain SLE 3.6L V6 GAS Automatic 6 Speed Sport Utility
  Added Oct 2020 • 14 Fuel-ups

  Property of mxt161

• 21.6 Avg MPG

• Terrain

  2017 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2018 • 183 Fuel-ups

  Property of KVal7

• 21.1 Avg MPG

• White Jimmy

  2017 GMC Terrain Denali 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jul 2020 • 49 Fuel-ups

  Property of dovey413gmailcom

• 26.5 Avg MPG

• Red Terrain

  2017 GMC Terrain Denali 3.6L V6 GAS Automatic 6 Speed Sport Utility
  Added Nov 2016 • 182 Fuel-ups

  Property of MLL

• 19.9 Avg MPG

• Terrain

  2017 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jun 2020 • 7 Fuel-ups

  Property of mkcottle

• 24.0 Avg MPG

• 2017 Terrain

  2017 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Feb 2018 • 114 Fuel-ups

  Property of Firefotog

• 22.7 Avg MPG

• 2017 Terrain

  2017 GMC Terrain SLT 2.4L L4 FLEX Automatic 6 Speed
  Added Jul 2017 • 97 Fuel-ups

  Property of gtosuper98

• 21.6 Avg MPG

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