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2018 GMC Sierra 1500 MPG

Based on data from 193 vehicles, 17,926 fuel-ups and 5,067,207 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 246 outliers (1.35%) removed.

Following shows the average MPG of each of the 193 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 • 230 Fuel-ups

    Property of ndsewall

  • 16.0 Avg MPG
  • 033

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Mar 2024 • 24 Fuel-ups

    Property of jirpol

  • 15.2 Avg MPG
  • GMC

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed Crew Cab Pickup
    Added Jul 2022 • 93 Fuel-ups

    Property of jscott2126

  • 15.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jun 2024 • 4 Fuel-ups

    Property of blackandwhiteX6

  • 17.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added May 2024 • 5 Fuel-ups

    Property of MHingley

  • 16.4 Avg MPG
  • GMC Sierra 1500 SLT

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jul 2018 • 50 Fuel-ups

    Property of Dirtpig

  • 17.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2018 • 324 Fuel-ups

    Property of Polar800

  • 13.9 Avg MPG
  • Truck

    2018 GMC Sierra 1500 4.3L V6 FLEX Automatic 6 Speed Standard Cab Pickup
    Added May 2019 • 7 Fuel-ups

    Property of mcgannd

  • 24.8 Avg MPG
  • 2018GMC SIERRA 4X4

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Feb 2020 • 90 Fuel-ups

    Property of jjz3

  • 19.0 Avg MPG
  • GMC 1500 4x4

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Feb 2018 • 197 Fuel-ups

    Property of kiscl

  • 14.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 261 Fuel-ups

    Property of e37292

  • 17.0 Avg MPG
  • Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Oct 2021 • 76 Fuel-ups

    Property of Philly9277

  • 15.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2022 • 88 Fuel-ups

    Property of sierradenali6-2

  • 13.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Feb 2019 • 166 Fuel-ups

    Property of mskalak

  • 15.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2022 • 56 Fuel-ups

    Property of jasonellington

  • 16.8 Avg MPG
  • 2018 Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Oct 2021 • 59 Fuel-ups

    Property of gksills

  • 18.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Mar 2022 • 95 Fuel-ups

    Property of nvolz

  • 16.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Nov 2022 • 18 Fuel-ups

    Property of rosco1618

  • 18.2 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2018 • 151 Fuel-ups

    Property of lordsporkton

  • 14.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Mar 2021 • 37 Fuel-ups

    Property of DarkLordScott

  • 16.5 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Neutral coasting

Coasting in neutral in most cases is more fuel efficient the... ...

by campisi

Read more tips