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2018 GMC Sierra 1500 MPG

Based on data from 153 vehicles, 7,226 fuel-ups and 2,101,739 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.39 with a 0.07 MPG margin of error.

Below you can see a distribution of the fuel-ups with 228 outliers (3.06%) removed.

Following shows the average MPG of each of the 153 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 8 Speed
    Added Feb 2018 • 159 Fuel-ups

    Property of elliston61

  • 20.3 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Mar 2018 • 151 Fuel-ups

    Property of Existant69

  • 12.4 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 5.3L V8 FLEX Automatic 8 Speed
    Added Apr 2018 • 69 Fuel-ups

    Property of msova2

  • 14.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2019 • 29 Fuel-ups

    Property of iNative

  • 15.9 Avg MPG
  • Gus’s Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added May 2019 • 60 Fuel-ups

    Property of enszc

  • 14.3 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Apr 2019 • 135 Fuel-ups

    Property of CAHayes1109

  • 13.7 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2018 • 117 Fuel-ups

    Property of mwm203

  • 16.5 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2018 • 88 Fuel-ups

    Property of lordsporkton

  • 14.1 Avg MPG
  • Black Betty

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Dec 2018 • 51 Fuel-ups

    Property of tlawson85

  • 17.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jan 2020 • 7 Fuel-ups

    Property of Teutonics

  • 16.0 Avg MPG
  • My Sierra 1500

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

    Property of rinman

  • 14.8 Avg MPG
  • 2018GMC SIERRA 4X4

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Feb 2020 • 5 Fuel-ups

    Property of jjz3

  • 24.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 63 Fuel-ups

    Property of NGreen08

  • 16.5 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 105 Fuel-ups

    Property of jered6323

  • 15.4 Avg MPG
  • 2018 Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jul 2018 • 82 Fuel-ups

    Property of mkirbitz

  • 16.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2018 • 98 Fuel-ups

    Property of Polar800

  • 16.4 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
    Added Feb 2019 • 65 Fuel-ups

    Property of trentm

  • 14.6 Avg MPG
  • GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Nov 2018 • 80 Fuel-ups

    Property of Jeferon1

  • 11.4 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed Crew Cab Pickup
    Added Jan 2019 • 135 Fuel-ups

    Property of civicsiracer06

  • 15.5 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 59 Fuel-ups

    Property of cbinnie22

  • 15.8 Avg MPG

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