Based on data from 66 vehicles, 4,922 fuel-ups and 1,518,231 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 170 outliers (3.34%) removed.

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

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• Terrain

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 551 Fuel-ups

  Property of das11520

• 25.6 Avg MPG

• My Terrain

  2013 GMC Terrain Denali 3.6L V6 FLEX Automatic 6 Speed Sport Utility
  Added May 2017 • 295 Fuel-ups

  Property of Blodgins

• 20.3 Avg MPG

• My Terrain

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Aug 2022 • 55 Fuel-ups

  Property of nrtolly

• 23.1 Avg MPG

• 2013 GMC Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2021 • 163 Fuel-ups

  Property of Shanna49

• 25.1 Avg MPG

• My Terrain

  2013 GMC Terrain Denali 3.6L V6 GAS Automatic 6 Speed
  Added Aug 2021 • 145 Fuel-ups

  Property of MarvMiller

• 20.7 Avg MPG

• Terrain

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Oct 2017 • 315 Fuel-ups

  Property of donnitas

• 20.8 Avg MPG

• My Terrain

  2013 GMC Terrain SLT 2.4L L4 FLEX Automatic 6 Speed
  Added Aug 2017 • 420 Fuel-ups

  Property of Envisionit

• 21.4 Avg MPG

• Terrain

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2018 • 180 Fuel-ups

  Property of sngy9f

• 18.7 Avg MPG

• Terrain

  2013 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Jun 2024 • 5 Fuel-ups

  Property of Spanks906

• 23.9 Avg MPG

• Terrain

  2013 GMC Terrain SLT 3.6L V6 GAS Automatic 6 Speed Sport Utility
  Added Apr 2024 • 16 Fuel-ups

  Property of trot84

• 32.6 Avg MPG

• Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2024 • 3 Fuel-ups

  Property of andrewhostett

• 24.1 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 3.6L V6 GAS Automatic 6 Speed
  Added Jul 2023 • 24 Fuel-ups

  Property of Will_H

• 31.8 Avg MPG

• Terrain

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jun 2021 • 117 Fuel-ups

  Property of bMonk

• 21.3 Avg MPG

• My Terrain

  2013 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed
  Added Mar 2018 • 23 Fuel-ups

  Property of msova2

• 20.6 Avg MPG

• GMC Terrain

  2013 GMC Terrain SLE 2.4L L4 FLEX Automatic 6 Speed Sport Utility
  Added Oct 2017 • 90 Fuel-ups

  Property of rgerlach

• 17.7 Avg MPG

• 2013 GMC Terrain

  2013 GMC Terrain SLT 3.6L V6 FLEX Automatic 6 Speed
  Added Mar 2017 • 242 Fuel-ups

  Property of kaseynicole

• 17.8 Avg MPG

• z debbie's terrain

  2013 GMC Terrain Denali 2.4L L4 FLEX Automatic 6 Speed
  Added Sep 2016 • 489 Fuel-ups

  Property of marinermoe

• 23.1 Avg MPG

• Terrain Turd

  2013 GMC Terrain SLT 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2022 • 3 Fuel-ups

  Property of babytruck97

• 17.7 Avg MPG

• Wagon

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Jul 2024 • 15 Fuel-ups

  Property of kendalltf

• 19.9 Avg MPG

• Wagon

  2013 GMC Terrain SLE 2.4L L4 GAS Automatic 6 Speed Sport Utility
  Added Nov 2020 • 15 Fuel-ups

  Property of kendalltf

• 19.9 Avg MPG

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