2003 GMC Sierra 1500 HD MPG

Based on data from 15 vehicles, 648 fuel-ups and 149,896 miles of driving, the 2003 GMC Sierra 1500 HD gets a combined Avg MPG of 11.46 with a 0.18 MPG margin of error.

Below you can see a distribution of the fuel-ups with 178 outliers (21.55%) removed.

Following shows the average MPG of each of the 15 vehicles in the system.

• My Sierra 1500 HD

  2003 GMC Sierra 1500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Jan 2023 • 74 Fuel-ups

  Property of timbrusky

• 13.0 Avg MPG

• Sierra

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added May 2019 • 65 Fuel-ups

  Property of weddlerr

• 11.1 Avg MPG

• 2003 1500 HD

  2003 GMC Sierra 1500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Dec 2017 • 171 Fuel-ups

  Property of Andrew605

• 11.6 Avg MPG

• Sierra 1500 HD

  2003 GMC Sierra 1500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added May 2022 • 8 Fuel-ups

  Property of bmudd89

• 14.1 Avg MPG

• My Sierra 1500 HD

  2003 GMC Sierra 1500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Jun 2018 • 3 Fuel-ups

  Property of bspadoni0202

• 12.7 Avg MPG

• 2003 GMC Sierra

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jun 2019 • 154 Fuel-ups

  Property of CruisnCobra

• 10.9 Avg MPG

• Sierra

  2003 GMC Sierra 1500 HD Custom Submodel
  Added Mar 2017 • 141 Fuel-ups

  Property of lucasbodine

• 22.9 Avg MPG

• My Sierra 1500 HD

  2003 GMC Sierra 1500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Dec 2020 • 7 Fuel-ups

  Property of weflene

• 10.4 Avg MPG

• My Sierra 1500 HD

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jan 2016 • 58 Fuel-ups

  Property of MattSS

• 11.9 Avg MPG

• My Sierra 1500 HD

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added Apr 2017 • 55 Fuel-ups

  Property of vonquke

• 13.0 Avg MPG

• Pickup

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Aug 2017 • 50 Fuel-ups

  Property of Tfreeman84

• 11.0 Avg MPG

• 03 GMC Sierra 1500HD

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added Nov 2016 • 11 Fuel-ups

  Property of Suncoaster

• 12.2 Avg MPG

• Jetta sporty

  2003 GMC Sierra 1500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added Apr 2017 • 76 Fuel-ups

  Property of vonquke

• 42.2 Avg MPG

• Quadrasteer Pickup

  2003 GMC Sierra 1500 HD SLE 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added May 2016 • 8 Fuel-ups

  Property of hunter289

• 12.1 Avg MPG

• Tom's HD

  2003 GMC Sierra 1500 HD GAS V8
  Added Jul 2013 • 27 Fuel-ups

  Property of Gunner

• 12.0 Avg MPG