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2018 GMC Sierra 1500 MPG

Based on data from 180 vehicles, 14,620 fuel-ups and 4,139,150 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.02 with a 0.06 MPG margin of error.

Below you can see a distribution of the fuel-ups with 213 outliers (1.44%) removed.

Following shows the average MPG of each of the 180 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • Jimmy

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jan 2018 • 170 Fuel-ups

    Property of cowpen

  • 19.1 Avg MPG
  • Rich's Truck

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
    Added Jul 2019 • 107 Fuel-ups

    Property of rcorning

  • 18.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
    Added Mar 2018 • 173 Fuel-ups

    Property of chilly0999

  • 15.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2022 • 75 Fuel-ups

    Property of sierradenali6-2

  • 13.9 Avg MPG
  • Big Red Eskimo

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Nov 2021 • 139 Fuel-ups

    Property of rkfdwc1

  • 15.3 Avg MPG
  • 2018GMC SIERRA 4X4

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Feb 2020 • 73 Fuel-ups

    Property of jjz3

  • 18.9 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Oct 2018 • 165 Fuel-ups

    Property of bgrinder90

  • 14.1 Avg MPG
  • Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jan 2018 • 321 Fuel-ups

    Property of Godofwine7

  • 16.0 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
    Added May 2018 • 358 Fuel-ups

    Property of joenrox

  • 16.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 232 Fuel-ups

    Property of e37292

  • 16.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2020 • 114 Fuel-ups

    Property of retiredcb

  • 18.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Sep 2018 • 118 Fuel-ups

    Property of rinman

  • 15.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added May 2018 • 165 Fuel-ups

    Property of wmdahler

  • 17.2 Avg MPG
  • GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jun 2018 • 256 Fuel-ups

    Property of Buckshot48

  • 17.7 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Nov 2018 • 201 Fuel-ups

    Property of gerickson24

  • 14.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Apr 2018 • 181 Fuel-ups

    Property of rleitht

  • 15.1 Avg MPG
  • Rooster

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2019 • 100 Fuel-ups

    Property of x62605

  • 17.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2019 • 231 Fuel-ups

    Property of iNative

  • 15.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2018 • 281 Fuel-ups

    Property of Polar800

  • 14.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2022 • 137 Fuel-ups

    Property of Mstc

  • 15.7 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

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