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2018 GMC Terrain MPG

Based on data from 80 vehicles, 7,564 fuel-ups and 2,492,090 miles of driving, the 2018 GMC Terrain gets a combined Avg MPG of 28.50 with a 0.19 MPG margin of error.

Below you can see a distribution of the fuel-ups with 42 outliers (0.55%) removed.

Following shows the average MPG of each of the 80 vehicles in the system.

2018 GMC Terrains For Sale Nearby

  • GMC Terrain

    2018 GMC Terrain SLE 1.6L L4 DIESEL Automatic 6 Speed
    Added May 2018 • 254 Fuel-ups

    Property of nstp97

  • 32.3 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Feb 2018 • 372 Fuel-ups

    Property of KBender

  • 19.5 Avg MPG
  • Terrain

    2018 GMC Terrain SLE 1.5L L4 GAS Automatic 6 Speed
    Added Aug 2021 • 133 Fuel-ups

    Property of etombaugh

  • 25.8 Avg MPG
  • Terrain Diesel

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added Jul 2021 • 305 Fuel-ups

    Property of bwelsh321

  • 35.1 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added May 2020 • 139 Fuel-ups

    Property of kendiesel85

  • 25.2 Avg MPG
  • Nolan - Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 6 Speed
    Added Aug 2023 • 82 Fuel-ups

    Property of jheinzl

  • 19.4 Avg MPG
  • GMC

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added Jun 2021 • 196 Fuel-ups

    Property of kamilw

  • 36.5 Avg MPG
  • Terrain 2018

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Mar 2021 • 215 Fuel-ups

    Property of mark6804

  • 21.3 Avg MPG
  • GMC Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Aug 2024 • 4 Fuel-ups

    Property of DinoUser

  • 26.5 Avg MPG
  • My Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
    Added Dec 2017 • 265 Fuel-ups

    Property of mbergner

  • 23.9 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added May 2021 • 202 Fuel-ups

    Property of wrightjd2

  • 21.4 Avg MPG
  • Black Terrain

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed Sport Utility
    Added Mar 2018 • 294 Fuel-ups

    Property of TerrainTracker

  • 32.3 Avg MPG
  • Grey Ghost

    2018 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
    Added Sep 2021 • 231 Fuel-ups

    Property of drifter47

  • 27.2 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Jan 2018 • 132 Fuel-ups

    Property of FuelCricket

  • 23.7 Avg MPG
  • GMC Terrain

    2018 GMC Terrain SLT 1.5L L4 GAS Automatic 6 Speed
    Added Feb 2023 • 77 Fuel-ups

    Property of ChuckP62

  • 26.3 Avg MPG
  • Trichs Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
    Added Jun 2018 • 303 Fuel-ups

    Property of Hammer46

  • 26.8 Avg MPG
  • BlackCloud’s '18 Terrain Diesel

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added May 2019 • 229 Fuel-ups

    Property of Cyanide

  • 38.8 Avg MPG
  • Dad's Terrain

    2018 GMC Terrain SLE 2.0L L4 GAS Automatic 9 Speed Sport Utility
    Added Jun 2019 • 132 Fuel-ups

    Property of HerbTarlek

  • 26.8 Avg MPG
  • Andy&Karens Terrain

    2018 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
    Added Apr 2018 • 246 Fuel-ups

    Property of kandy

  • 28.5 Avg MPG
  • My Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
    Added Dec 2020 • 45 Fuel-ups

    Property of Niff42

  • 22.0 Avg MPG

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