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2018 GMC Sierra 1500 MPG

Based on data from 159 vehicles, 7,785 fuel-ups and 2,263,656 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 293 outliers (3.63%) removed.

Following shows the average MPG of each of the 159 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Dec 2018 • 91 Fuel-ups

    Property of e37292

  • 17.3 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Dec 2017 • 31 Fuel-ups

    Property of gulas47

  • 15.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Jun 2020 • 10 Fuel-ups

    Property of rickwhaas

  • 16.6 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2019 • 84 Fuel-ups

    Property of hubbd33

  • 13.2 Avg MPG
  • GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2018 • 35 Fuel-ups

    Property of Phlip

  • 17.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
    Added Mar 2018 • 133 Fuel-ups

    Property of MurphyD

  • 19.2 Avg MPG
  • Black Betty

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Dec 2018 • 60 Fuel-ups

    Property of tlawson85

  • 17.4 Avg MPG
  • Truck

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2020 • 23 Fuel-ups

    Property of jasonbrakhage

  • 13.7 Avg MPG
  • GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added May 2018 • 45 Fuel-ups

    Property of Jean-Eudes

  • 14.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 4.3L V6 FLEX Automatic 6 Speed
    Added Jan 2020 • 26 Fuel-ups

    Property of GregEscobar

  • 20.0 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 68 Fuel-ups

    Property of cbinnie22

  • 16.0 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
    Added Feb 2019 • 75 Fuel-ups

    Property of trentm

  • 14.8 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 5.3L V8 FLEX Automatic 8 Speed
    Added Feb 2019 • 75 Fuel-ups

    Property of mpgapp

  • 15.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
    Added Feb 2019 • 69 Fuel-ups

    Property of turbonix

  • 17.9 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 125 Fuel-ups

    Property of jered6323

  • 15.2 Avg MPG
  • 2018 GMC Sierra Denali 4x4

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jun 2018 • 112 Fuel-ups

    Property of mpg01

  • 16.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2018 • 119 Fuel-ups

    Property of Polar800

  • 15.3 Avg MPG
  • 2018 GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 90 Fuel-ups

    Property of pmhayden

  • 16.9 Avg MPG
  • Sierra

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Oct 2018 • 76 Fuel-ups

    Property of ScottyR

  • 14.1 Avg MPG
  • 2018 Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Nov 2018 • 53 Fuel-ups

    Property of Matt1552

  • 19.8 Avg MPG

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