Click here to see important news regarding the aCar App

2018 GMC Sierra 1500 MPG

Based on data from 147 vehicles, 5,396 fuel-ups and 1,584,550 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.49 with a 0.08 MPG margin of error.

Below you can see a distribution of the fuel-ups with 188 outliers (3.37%) removed.

Following shows the average MPG of each of the 147 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Mar 2018 • 135 Fuel-ups

    Property of Existant69

  • 16.4 Avg MPG
  • 2018 Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jul 2018 • 67 Fuel-ups

    Property of mkirbitz

  • 16.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 47 Fuel-ups

    Property of e37292

  • 17.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2019 • 23 Fuel-ups

    Property of kbcsac

  • 16.7 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Apr 2019 • 82 Fuel-ups

    Property of CAHayes1109

  • 13.8 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Nov 2018 • 35 Fuel-ups

    Property of Matt1552

  • 19.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 71 Fuel-ups

    Property of Chad08

  • 16.1 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
    Added Feb 2019 • 38 Fuel-ups

    Property of trentm

  • 14.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Mar 2019 • 46 Fuel-ups

    Property of Tommyboy1

  • 17.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Dec 2017 • 100 Fuel-ups

    Property of Hacjr1949

  • 19.0 Avg MPG
  • 2018 GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 52 Fuel-ups

    Property of pmhayden

  • 17.1 Avg MPG
  • GMC Sierra 1500 2018

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Apr 2018 • 55 Fuel-ups

    Property of JLF52

  • 18.9 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 37 Fuel-ups

    Property of cbinnie22

  • 16.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Nov 2018 • 43 Fuel-ups

    Property of epedro40

  • 16.6 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed Crew Cab Pickup
    Added Jan 2019 • 88 Fuel-ups

    Property of civicsiracer06

  • 15.3 Avg MPG
  • Rich's Truck

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
    Added Jul 2019 • 17 Fuel-ups

    Property of rcorning

  • 18.8 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
    Added Jun 2018 • 42 Fuel-ups

    Property of JDubz313

  • 16.4 Avg MPG
  • Gus’s Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added May 2019 • 29 Fuel-ups

    Property of enszc

  • 14.1 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 64 Fuel-ups

    Property of jered6323

  • 15.7 Avg MPG
  • 18 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jul 2019 • 18 Fuel-ups

    Property of tpalshadow

  • 15.9 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Top Tier Fuel not what it's pumped up to be

An additive package cannot make good fuel out of dirty, low-... ...

by Jedda

Read more tips