Based on data from 18 vehicles, 216 fuel-ups and 62,889 miles of driving, the 2020 GMC Terrain gets a combined Avg MPG of 24.61 with a 0.50 MPG margin of error.

Any Engine Type 1.5L L4 GAS (13) 2.0L L4 GAS (2) Any Body Style Sport Utility (6) Any Submodel Denali (1) SLE (7) SLT (10)

Below you can see a distribution of the fuel-ups with 7 outliers (3.14%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

• My Terrain

  2020 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
  Added Apr 2020 • 44 Fuel-ups

  Property of plonker2008

• 23.6 Avg MPG

• Terrain

  2020 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed Sport Utility
  Added Sep 2020 • 14 Fuel-ups

  Property of Glock32

• 23.1 Avg MPG

• My Terrain

  2020 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
  Added Sep 2020 • 10 Fuel-ups

  Property of mjh007

• 25.0 Avg MPG

• 2020 Terrain

  2020 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Aug 2020 • 14 Fuel-ups

  Property of ashleymouton

• 24.3 Avg MPG

• GMC Terrain

  2020 GMC Terrain SLE Automatic 9 Speed Sport Utility
  Added Jul 2020 • 17 Fuel-ups

  Property of lizhbunce

• 28.4 Avg MPG

• My Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Jun 2020 • 14 Fuel-ups

  Property of phillyturbosix

• 25.1 Avg MPG

• My Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Aug 2020 • 9 Fuel-ups

  Property of JessicaMarie

• 20.9 Avg MPG

• 2020 GMC Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Jul 2020 • 17 Fuel-ups

  Property of fredgannon

• 25.6 Avg MPG

• Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Jun 2020 • 21 Fuel-ups

  Property of Messiah66

• 31.8 Avg MPG

• My Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Mar 2020 • 30 Fuel-ups

  Property of trains2007

• 24.3 Avg MPG

• Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Feb 2020 • 8 Fuel-ups

  Property of dmarbes

• 23.8 Avg MPG

• My Terrain

  2020 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
  Added Oct 2020 • 5 Fuel-ups

  Property of Ewiggie

• 39.6 Avg MPG

• My Terrain

  2020 GMC Terrain SLT
  Added Jan 2020 • 9 Fuel-ups

  Property of wrjsn

• 24.3 Avg MPG

• 2020 Terrain

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Sep 2020 • 3 Fuel-ups

  Property of Wrench01

• 28.6 Avg MPG

• My Terrain

  2020 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
  Added Aug 2020 • 10 Fuel-ups

  Property of swampybottom

• 29.1 Avg MPG

• Terrain

  2020 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Mar 2020 • 7 Fuel-ups

  Property of dvisger

• 30.9 Avg MPG

• 20 GMC Terrain SLT

  2020 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Jan 2020 • 19 Fuel-ups

  Property of Ronofa

• 23.2 Avg MPG

• My Terrain

  2020 GMC Terrain SLE
  Added Dec 2019 • 11 Fuel-ups

  Property of ayzeya

• 27.4 Avg MPG