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2018 GMC Sierra 1500 MPG

Based on data from 193 vehicles, 17,945 fuel-ups and 5,072,208 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 246 outliers (1.35%) removed.

Following shows the average MPG of each of the 193 vehicles in the system.

2018 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Apr 2018 • 229 Fuel-ups

    Property of rleitht

  • 15.1 Avg MPG
  • GMC Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Oct 2022 • 62 Fuel-ups

    Property of ArtieBar64

  • 16.6 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2020 • 132 Fuel-ups

    Property of retiredcb

  • 18.8 Avg MPG
  • Truck

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2020 • 195 Fuel-ups

    Property of jasonbrakhage

  • 14.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed
    Added Nov 2023 • 48 Fuel-ups

    Property of bsimmons86

  • 13.0 Avg MPG
  • Quicksilver

    2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Jun 2020 • 263 Fuel-ups

    Property of tootall518

  • 16.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Dec 2021 • 185 Fuel-ups

    Property of riggity27

  • 14.9 Avg MPG
  • GMC Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jun 2018 • 372 Fuel-ups

    Property of Buckshot48

  • 17.9 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
    Added May 2018 • 464 Fuel-ups

    Property of joenrox

  • 16.6 Avg MPG
  • Rich's Truck

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
    Added Jul 2019 • 162 Fuel-ups

    Property of rcorning

  • 18.2 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jan 2024 • 85 Fuel-ups

    Property of Mr-GreenToCleanPools

  • 18.4 Avg MPG
  • My Sierra

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Apr 2022 • 63 Fuel-ups

    Property of cheapguy99

  • 12.7 Avg MPG
  • Denali

    2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Jun 2024 • 28 Fuel-ups

    Property of Jathroo

  • 16.2 Avg MPG
  • Big Red Eskimo

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Nov 2021 • 268 Fuel-ups

    Property of rkfdwc1

  • 15.5 Avg MPG
  • Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2019 • 454 Fuel-ups

    Property of jered6323

  • 14.3 Avg MPG
  • Rooster

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2019 • 141 Fuel-ups

    Property of x62605

  • 17.5 Avg MPG
  • 2018 GMC Sierra

    2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Oct 2018 • 195 Fuel-ups

    Property of bgrinder90

  • 14.1 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
    Added Aug 2024 • 36 Fuel-ups

    Property of o_dog2003

  • 16.7 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added May 2018 • 219 Fuel-ups

    Property of wmdahler

  • 17.3 Avg MPG
  • My Sierra 1500

    2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Jun 2024 • 18 Fuel-ups

    Property of richardcfo

  • 20.6 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

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