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2018 GMC Sierra 1500 MPG

Based on data from 168 vehicles, 10,669 fuel-ups and 3,084,648 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.29 with a 0.06 MPG margin of error.

Below you can see a distribution of the fuel-ups with 434 outliers (3.91%) removed.

Following shows the average MPG of each of the 168 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • GMC Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2018 • 124 Fuel-ups

    Property of ndsewall

  • 16.3 Avg MPG
  • Jolene

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jul 2020 • 54 Fuel-ups

    Property of eddiemoney

  • 17.1 Avg MPG
  • Glenn

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Nov 2020 • 79 Fuel-ups

    Property of ghcrawford

  • 15.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Jun 2018 • 62 Fuel-ups

    Property of yt_4real

  • 13.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2021 • 20 Fuel-ups

    Property of maassen5995

  • 19.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Feb 2019 • 96 Fuel-ups

    Property of turbonix

  • 17.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 155 Fuel-ups

    Property of e37292

  • 16.8 Avg MPG
  • Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2020 • 50 Fuel-ups

    Property of Teutonics

  • 17.9 Avg MPG
  • 2018 Sierra

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

    Property of elliston61

  • 20.4 Avg MPG
  • Gus’s Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added May 2019 • 142 Fuel-ups

    Property of enszc

  • 14.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 5.3L V8 FLEX Automatic 8 Speed
    Added Feb 2019 • 110 Fuel-ups

    Property of mpgapp

  • 14.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 4.3L V6 FLEX Automatic 6 Speed
    Added Jan 2020 • 93 Fuel-ups

    Property of GregEscobar

  • 19.1 Avg MPG
  • Sierra All Terain

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2020 • 82 Fuel-ups

    Property of 76cj

  • 19.1 Avg MPG
  • Quicksilver

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Jun 2020 • 64 Fuel-ups

    Property of tootall518

  • 16.3 Avg MPG
  • Rooster

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2019 • 47 Fuel-ups

    Property of x62605

  • 16.9 Avg MPG
  • Truck

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added May 2018 • 84 Fuel-ups

    Property of DrAwesome

  • 16.2 Avg MPG
  • Black Betty

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Dec 2018 • 109 Fuel-ups

    Property of tlawson85

  • 17.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Dec 2020 • 62 Fuel-ups

    Property of ianspecs

  • 13.7 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Oct 2018 • 99 Fuel-ups

    Property of ScottyR

  • 13.9 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 212 Fuel-ups

    Property of jered6323

  • 14.6 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Clear the Clutter

I try to keep only the essentials in my car. Hauling extra weight means higher fuel costs.

by PressFit

Read more tips