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2018 GMC Sierra 1500 MPG

Based on data from 180 vehicles, 13,927 fuel-ups and 3,948,496 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.05 with a 0.06 MPG margin of error.

Below you can see a distribution of the fuel-ups with 210 outliers (1.49%) removed.

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

2018 GMC Sierra 1500s For Sale Nearby

  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 349 Fuel-ups

    Property of jered6323

  • 14.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2022 • 37 Fuel-ups

    Property of jasonellington

  • 16.9 Avg MPG
  • GMC Sierra 1500 2018

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Apr 2018 • 136 Fuel-ups

    Property of JLF52

  • 18.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2022 • 130 Fuel-ups

    Property of Mstc

  • 15.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jul 2022 • 23 Fuel-ups

    Property of bertt34

  • 16.8 Avg MPG
  • Truck

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added May 2018 • 136 Fuel-ups

    Property of DrAwesome

  • 16.1 Avg MPG
  • Glenn

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Nov 2020 • 187 Fuel-ups

    Property of ghcrawford

  • 14.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2019 • 201 Fuel-ups

    Property of iNative

  • 15.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added May 2018 • 154 Fuel-ups

    Property of wmdahler

  • 17.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2018 • 258 Fuel-ups

    Property of Polar800

  • 14.4 Avg MPG
  • Big Red Eskimo

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Nov 2021 • 107 Fuel-ups

    Property of rkfdwc1

  • 15.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 216 Fuel-ups

    Property of e37292

  • 16.9 Avg MPG
  • GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jun 2018 • 241 Fuel-ups

    Property of Buckshot48

  • 17.6 Avg MPG
  • 2018 GMC Sierra Denali 4x4

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jun 2018 • 182 Fuel-ups

    Property of mpg01

  • 16.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Nov 2018 • 158 Fuel-ups

    Property of epedro40

  • 16.5 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Apr 2019 • 326 Fuel-ups

    Property of CAHayes1109

  • 13.9 Avg MPG
  • Truck

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2020 • 147 Fuel-ups

    Property of jasonbrakhage

  • 14.2 Avg MPG
  • Black Betty

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Dec 2018 • 199 Fuel-ups

    Property of tlawson85

  • 18.0 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 Denali Automatic 8 Speed Crew Cab Pickup
    Added Jul 2021 • 53 Fuel-ups

    Property of ch56vy

  • 14.0 Avg MPG
  • Rooster

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2019 • 89 Fuel-ups

    Property of x62605

  • 17.3 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

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