Click here to see important news regarding the aCar App

2018 GMC Sierra 1500 MPG

Based on data from 186 vehicles, 16,344 fuel-ups and 4,616,610 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 15.97 with a 0.05 MPG margin of error.

Below you can see a distribution of the fuel-ups with 236 outliers (1.42%) removed.

Following shows the average MPG of each of the 186 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2019 • 54 Fuel-ups

    Property of mbrent77

  • 18.5 Avg MPG
  • 2018 GMC

    2018 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
    Added Mar 2018 • 133 Fuel-ups

    Property of MurphyD

  • 19.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Dec 2017 • 148 Fuel-ups

    Property of Hacjr1949

  • 18.4 Avg MPG
  • GMC Truck

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Extended Cab Pickup
    Added Mar 2019 • 85 Fuel-ups

    Property of JOlson

  • 14.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Mar 2019 • 76 Fuel-ups

    Property of Tommyboy1

  • 17.5 Avg MPG
  • Noel

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 34 Fuel-ups

    Property of mkcollimsworth

  • 17.8 Avg MPG
  • 2018 GMC Sierra 1500 SLT

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jul 2018 • 75 Fuel-ups

    Property of blkcheech

  • 16.9 Avg MPG
  • Little Red

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Nov 2018 • 64 Fuel-ups

    Property of llljrmd

  • 16.8 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Dec 2018 • 122 Fuel-ups

    Property of wdclark

  • 18.8 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
    Added Jul 2020 • 8 Fuel-ups

    Property of riahkane

  • 15.2 Avg MPG
  • 2018 Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Nov 2017 • 90 Fuel-ups

    Property of bae1161

  • 17.2 Avg MPG
  • 2018 Sierra 1500 SLT

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Mar 2018 • 175 Fuel-ups

    Property of RickGMC

  • 16.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2019 • 5 Fuel-ups

    Property of green02crew

  • 12.9 Avg MPG
  • Sierra Denali

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

    Property of PBU02

  • 23.5 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
    Added Jan 2019 • 17 Fuel-ups

    Property of Ratater

  • 15.5 Avg MPG
  • Smokey

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2018 • 37 Fuel-ups

    Property of isobellacuan

  • 16.9 Avg MPG
  • Thomas

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Nov 2018 • 20 Fuel-ups

    Property of tomprzy

  • 18.1 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
    Added Sep 2018 • 24 Fuel-ups

    Property of pilule

  • 17.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jul 2018 • 20 Fuel-ups

    Property of flopper666

  • 31.9 Avg MPG
  • 2018 Sierra 1500, 6.2, 3.23

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Jul 2018 • 33 Fuel-ups

    Property of onecooljoe70

  • 14.2 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Do not exceed 110-114km/hour

Save fuel and get better mileage with your truck (I have an ... ...

by dod

Read more tips