Based on data from 20 vehicles, 1,148 fuel-ups and 293,359 miles of driving, the 2003 Chevrolet Trailblazer EXT gets a combined Avg MPG of 14.73 with a 0.18 MPG margin of error.

Any Engine Type 4.2L L6 GAS (17) 5.3L V8 GAS (3) Any Body Style Sport Utility (6) Any Submodel North Face (1) LS (6) LT (13)

Below you can see a distribution of the fuel-ups with 33 outliers (2.79%) removed.

Following shows the average MPG of each of the 20 vehicles in the system.

• TrailBlazer

  2003 Chevrolet Trailblazer EXT LT 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Nov 2024 • 3 Fuel-ups

  Property of beastrider79

• 12.9 Avg MPG

• Chevrolet Trailblazer EXT

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Feb 2018 • 163 Fuel-ups

  Property of rgoh224

• 14.2 Avg MPG

• 2003 Trailblazer EXT LT

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Jul 2024 • 3 Fuel-ups

  Property of fisherju3800

• 15.1 Avg MPG

• Chevy Trailblazer

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Mar 2017 • 161 Fuel-ups

  Property of gmanuel2000

• 15.8 Avg MPG

• My Trailblazer EXT

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Mar 2022 • 15 Fuel-ups

  Property of KG7YTS

• 15.1 Avg MPG

• John's Trailblazer EXT

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Feb 2017 • 145 Fuel-ups

  Property of skives19

• 14.7 Avg MPG

• Matthew

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Nov 2020 • 152 Fuel-ups

  Property of savedbyHisblood85

• 16.5 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Feb 2018 • 214 Fuel-ups

  Property of ljgaedke

• 13.1 Avg MPG

• 2003 TrailBlazer Chevrolet

  2003 Chevrolet Trailblazer EXT North Face 5.3L V8 GAS Automatic 4 Speed
  Added Dec 2016 • 142 Fuel-ups

  Property of Good1

• 13.2 Avg MPG

• Chevy T-Payne

  2003 Chevrolet Trailblazer EXT LS 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Sep 2019 • 10 Fuel-ups

  Property of Raider

• 15.9 Avg MPG

• Tasso (daso)

  2003 Chevrolet Trailblazer EXT LT 5.3L V8 GAS Automatic 4 Speed
  Added Oct 2019 • 3 Fuel-ups

  Property of Ethelfled

• 14.5 Avg MPG

• My Trailblazer EXT

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Feb 2019 • 18 Fuel-ups

  Property of Sneaky1

• 14.5 Avg MPG

• Melissa

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Jan 2018 • 25 Fuel-ups

  Property of bgedney

• 10.4 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer EXT LS 4.2L L6 GAS Automatic Sport Utility
  Added Jun 2018 • 17 Fuel-ups

  Property of Sneaky1

• 17.6 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer EXT LS 4.2L L6 GAS Automatic 4 Speed
  Added May 2018 • 10 Fuel-ups

  Property of OCDGeek

• 16.5 Avg MPG

• My Trailblazer EXT

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed
  Added Dec 2017 • 47 Fuel-ups

  Property of ljsm

• 17.5 Avg MPG

• Emerald

  2003 Chevrolet Trailblazer EXT LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Jun 2014 • 51 Fuel-ups

  Property of Morgantj13

• 14.5 Avg MPG

• Trailblaser

  2003 Chevrolet Trailblazer EXT LS 4.2L L6 GAS Automatic 4 Speed
  Added Aug 2016 • 176 Fuel-ups

  Property of CaptNCoke

• 18.7 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer EXT LS 4.2L L6 GAS Automatic 4 Speed
  Added Nov 2016 • 64 Fuel-ups

  Property of drachenfire

• 16.2 Avg MPG

• Trl Blazer

  2003 Chevrolet Trailblazer EXT LS 4.2L L6 GAS Automatic 4 Speed
  Added Mar 2017 • 22 Fuel-ups

  Property of Allentreching

• 17.6 Avg MPG