Click here to see important news regarding the aCar App

2018 GMC Sierra 1500 MPG

Based on data from 78 vehicles, 1,441 fuel-ups and 418,672 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.51 with a 0.18 MPG margin of error.

Below you can see a distribution of the fuel-ups with 15 outliers (1.03%) removed.

Following shows the average MPG of each of the 78 vehicles in the system.

  • GMC Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jul 2018 • 7 Fuel-ups

    Property of blkcheech

  • 16.5 Avg MPG
  • GMC Sierra

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 6 Speed
    Added Jul 2018 • 16 Fuel-ups

    Property of Aika_on_Fuelly

  • 12.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Dec 2017 • 53 Fuel-ups

    Property of mmoody5479

  • 18.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 5.3L V8 FLEX Automatic 8 Speed
    Added Apr 2018 • 17 Fuel-ups

    Property of msova2

  • 13.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jul 2018 • 13 Fuel-ups

    Property of mattonthewater

  • 17.6 Avg MPG
  • Doug’s Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Feb 2018 • 38 Fuel-ups

    Property of Doug100

  • 16.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jun 2018 • 15 Fuel-ups

    Property of jeff24rs

  • 17.0 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
    Added May 2018 • 33 Fuel-ups

    Property of joenrox

  • 17.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Dec 2017 • 23 Fuel-ups

    Property of jjdmmorris

  • 14.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Apr 2018 • 22 Fuel-ups

    Property of lancecai77

  • 18.1 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 8 Speed
    Added Feb 2018 • 44 Fuel-ups

    Property of elliston61

  • 21.0 Avg MPG
  • 2018 GMC Sierra SLT

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Nov 2017 • 44 Fuel-ups

    Property of FriskyLingo

  • 15.6 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Mar 2018 • 54 Fuel-ups

    Property of Existant69

  • 10.4 Avg MPG
  • 2018 Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Cab & Chassis - Crew Cab
    Added Apr 2018 • 46 Fuel-ups

    Property of iZoomie

  • 18.0 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Standard Cab Pickup
    Added Jun 2018 • 15 Fuel-ups

    Property of Coronet

  • 19.7 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Mar 2018 • 24 Fuel-ups

    Property of yogi-bear

  • 16.6 Avg MPG
  • GMC Sierra 1500 SLT

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jul 2018 • 4 Fuel-ups

    Property of Dirtpig

  • 18.0 Avg MPG
  • Bo’s Sierra SLT

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Mar 2018 • 35 Fuel-ups

    Property of boewing1

  • 16.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Dec 2017 • 45 Fuel-ups

    Property of Hacjr1949

  • 19.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2017 • 39 Fuel-ups

    Property of rckywil

  • 16.5 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Turns Without Braking

Note: Safety First! Careful Practice Is Advisable! Result... ...

by cee

Read more tips