Based on data from 50 vehicles, 3,504 fuel-ups and 867,027 miles of driving, the 2003 GMC Envoy gets a combined Avg MPG of 16.75 with a 0.11 MPG margin of error.

Any Engine Type 4.2L L6 GAS (37) L6 GAS (11) V8 GAS (1) Any Body Style Sport Utility (9) Any Submodel SLE (15) SLT (22) Other (13)

Below you can see a distribution of the fuel-ups with 110 outliers (3.04%) removed.

Following shows the average MPG of each of the 50 vehicles in the system.

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• Envoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Sep 2016 • 654 Fuel-ups

  Property of tytycorbiin

• 17.0 Avg MPG

• My Envoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Oct 2024 • 7 Fuel-ups

  Property of surfer1334

• 18.9 Avg MPG

• Envoy SLT (GMC)

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Mar 2017 • 29 Fuel-ups

  Property of RADGAS

• 15.3 Avg MPG

• Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added Aug 2016 • 15 Fuel-ups

  Property of adam2001

• 15.7 Avg MPG

• My Envoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Dec 2019 • 96 Fuel-ups

  Property of Reneepsl

• 14.1 Avg MPG

• Envoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Sep 2016 • 120 Fuel-ups

  Property of tobermike

• 19.0 Avg MPG

• My Envoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Jul 2018 • 252 Fuel-ups

  Property of igorlacerda

• 20.3 Avg MPG

• Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added Jan 2017 • 69 Fuel-ups

  Property of mitchgorman

• 14.2 Avg MPG

• My Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Mar 2022 • 29 Fuel-ups

  Property of sisqu28

• 23.7 Avg MPG

• The Enjoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Oct 2019 • 52 Fuel-ups

  Property of KMueller

• 15.2 Avg MPG

• My Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added Jun 2020 • 21 Fuel-ups

  Property of seanmcauley

• 18.0 Avg MPG

• My Envoy XL

  2003 GMC Envoy Custom Submodel
  Added Jun 2019 • 8 Fuel-ups

  Property of kdwinterton

• 20.0 Avg MPG

• Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Oct 2019 • 4 Fuel-ups

  Property of brownboy12v

• 27.9 Avg MPG

• My Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added Oct 2017 • 175 Fuel-ups

  Property of MikeM99

• 15.2 Avg MPG

• Black Pearl

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Nov 2011 • 73 Fuel-ups

  Property of titanrules

• 16.6 Avg MPG

• CAthy's envoy

  2003 GMC Envoy SLT 4.2L L6 GAS Automatic 4 Speed
  Added Feb 2018 • 214 Fuel-ups

  Property of CathyP

• 17.8 Avg MPG

• Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added Feb 2018 • 76 Fuel-ups

  Property of bennetbx

• 18.4 Avg MPG

• Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Oct 2017 • 29 Fuel-ups

  Property of apexcleaning

• 39.7 Avg MPG

• The Bulldog

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added May 2018 • 191 Fuel-ups

  Property of reidyates

• 18.2 Avg MPG

• My Envoy

  2003 GMC Envoy SLE 4.2L L6 GAS Automatic 4 Speed
  Added Jan 2017 • 24 Fuel-ups

  Property of taylorp1

• 12.1 Avg MPG

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