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2018 GMC Sierra 1500 MPG

Based on data from 19 vehicles, 161 fuel-ups and 44,530 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 15.84 with a 0.46 MPG margin of error.

Below you can see a distribution of the fuel-ups with 2 outliers (1.23%) removed.

Following shows the average MPG of each of the 19 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • Betty

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2018 • 13 Fuel-ups

    Property of and_steve

  • 16.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Dec 2017 • 9 Fuel-ups

    Property of jjdmmorris

  • 13.4 Avg MPG
  • BKMX120

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

    Property of bkeating

  • 15.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2017 • 11 Fuel-ups

    Property of SnackDragon87

  • 20.9 Avg MPG
  • 2018 Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Nov 2017 • 13 Fuel-ups

    Property of bae1161

  • 15.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Dec 2017 • 17 Fuel-ups

    Property of Hacjr1949

  • 17.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Feb 2018 • 3 Fuel-ups

    Property of 435hornhunter

  • 17.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2018 • 11 Fuel-ups

    Property of nmason42

  • 13.3 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 8 Speed
    Added Feb 2018 • 4 Fuel-ups

    Property of elliston61

  • 18.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
    Added Dec 2017 • 16 Fuel-ups

    Property of mmoody5479

  • 17.0 Avg MPG
  • Jimmy

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Jan 2018 • 7 Fuel-ups

    Property of cowpen

  • 18.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2018 • 7 Fuel-ups

    Property of brettsinyard

  • 13.7 Avg MPG
  • 2018 GMC Sierra SLT

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Nov 2017 • 15 Fuel-ups

    Property of FriskyLingo

  • 15.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2018 • 9 Fuel-ups

    Property of mikepru

  • 15.6 Avg MPG
  • Sierra ‘18

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Dec 2017 • 10 Fuel-ups

    Property of karldv

  • 13.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2017 • 14 Fuel-ups

    Property of rckywil

  • 17.7 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Dec 2017 • 15 Fuel-ups

    Property of gulas47

  • 16.1 Avg MPG
  • My Sierra 1500

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

    Property of maulbach

  • 14.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Oct 2017 • 5 Fuel-ups

    Property of cburley

  • 16.9 Avg MPG

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