Click here to see important news regarding the aCar App

2018 GMC Sierra 1500 MPG

Based on data from 186 vehicles, 16,350 fuel-ups and 4,618,533 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 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Oct 2019 • 321 Fuel-ups

    Property of iNative

  • 15.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2024 • 20 Fuel-ups

    Property of Mr-GreenToCleanPools

  • 19.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Feb 2024 • 10 Fuel-ups

    Property of BowManGuardian

  • 16.3 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 423 Fuel-ups

    Property of jered6323

  • 14.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 218 Fuel-ups

    Property of cbinnie22

  • 15.6 Avg MPG
  • Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2020 • 122 Fuel-ups

    Property of Teutonics

  • 17.4 Avg MPG
  • Glenn

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Nov 2020 • 262 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 2023 • 33 Fuel-ups

    Property of Harvey4335

  • 14.9 Avg MPG
  • Rooster

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2019 • 123 Fuel-ups

    Property of x62605

  • 17.5 Avg MPG
  • My Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Apr 2022 • 41 Fuel-ups

    Property of cheapguy99

  • 12.4 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Nov 2018 • 253 Fuel-ups

    Property of gerickson24

  • 13.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Dec 2021 • 150 Fuel-ups

    Property of riggity27

  • 15.0 Avg MPG
  • Jolene

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jul 2020 • 161 Fuel-ups

    Property of eddiemoney

  • 17.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Nov 2018 • 217 Fuel-ups

    Property of epedro40

  • 16.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2020 • 127 Fuel-ups

    Property of retiredcb

  • 18.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Apr 2018 • 206 Fuel-ups

    Property of rleitht

  • 15.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2018 • 142 Fuel-ups

    Property of nmason42

  • 15.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Feb 2019 • 189 Fuel-ups

    Property of turbonix

  • 17.5 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Oct 2023 • 14 Fuel-ups

    Property of Jhs4

  • 13.8 Avg MPG
  • Jimmy

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jan 2018 • 202 Fuel-ups

    Property of cowpen

  • 19.1 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Anticipation

Anticipate, don't break hard, don't accelerate hard

by marisk

Read more tips