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2018 GMC Terrain MPG

Based on data from 68 vehicles, 3,954 fuel-ups and 1,311,559 miles of driving, the 2018 GMC Terrain gets a combined Avg MPG of 28.72 with a 0.26 MPG margin of error.

Below you can see a distribution of the fuel-ups with 23 outliers (0.58%) removed.

Following shows the average MPG of each of the 68 vehicles in the system.

2018 GMC Terrains For Sale Nearby

  • Terrain Diesel

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added Jul 2021 • 37 Fuel-ups

    Property of bwelsh321

  • 38.8 Avg MPG
  • Terrain 2018

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Mar 2021 • 30 Fuel-ups

    Property of mark6804

  • 18.5 Avg MPG
  • 2018 GMC Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Nov 2017 • 178 Fuel-ups

    Property of wa5rng

  • 27.6 Avg MPG
  • Terrain

    2018 GMC Terrain SLE 1.5L L4 GAS Automatic 6 Speed
    Added Aug 2021 • 7 Fuel-ups

    Property of etombaugh

  • 25.0 Avg MPG
  • Andy&Karens Terrain

    2018 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
    Added Apr 2018 • 137 Fuel-ups

    Property of kandy

  • 28.4 Avg MPG
  • My Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
    Added Dec 2020 • 8 Fuel-ups

    Property of Niff42

  • 23.7 Avg MPG
  • GMC

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added Jun 2021 • 73 Fuel-ups

    Property of kamilw

  • 39.6 Avg MPG
  • Grey Ghost

    2018 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
    Added Sep 2021 • 8 Fuel-ups

    Property of drifter47

  • 27.3 Avg MPG
  • 2018 Terrain

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed Sport Utility
    Added Dec 2019 • 118 Fuel-ups

    Property of sarwagwin

  • 36.8 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Jan 2018 • 83 Fuel-ups

    Property of FuelCricket

  • 24.2 Avg MPG
  • My Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
    Added Dec 2017 • 137 Fuel-ups

    Property of mbergner

  • 24.1 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added May 2021 • 23 Fuel-ups

    Property of wrightjd2

  • 21.0 Avg MPG
  • My Terrain

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
    Added Feb 2018 • 232 Fuel-ups

    Property of KBender

  • 20.2 Avg MPG
  • Trichs Terrain

    2018 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
    Added Jun 2018 • 147 Fuel-ups

    Property of Hammer46

  • 26.4 Avg MPG
  • Gmc Terrian

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed Sport Utility
    Added Mar 2018 • 144 Fuel-ups

    Property of cjp_8476

  • 34.5 Avg MPG
  • BlackCloud’s Terrain Diesel

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added May 2019 • 106 Fuel-ups

    Property of Cyanide

  • 40.2 Avg MPG
  • Black Terrain

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed Sport Utility
    Added Mar 2018 • 151 Fuel-ups

    Property of TerrainTracker

  • 32.4 Avg MPG
  • GMC Terrain Denali

    2018 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed Sport Utility
    Added Feb 2021 • 27 Fuel-ups

    Property of nlatkinson

  • 20.9 Avg MPG
  • Storm Breaker

    2018 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed
    Added May 2018 • 189 Fuel-ups

    Property of BayMan25

  • 30.8 Avg MPG
  • Dad's Terrain

    2018 GMC Terrain SLE 2.0L L4 GAS Automatic 9 Speed Sport Utility
    Added Jun 2019 • 52 Fuel-ups

    Property of HerbTarlek

  • 26.4 Avg MPG

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