Based on data from 103 vehicles, 6,098 fuel-ups and 1,421,477 miles of driving, the 2003 Chevrolet Trailblazer gets a combined Avg MPG of 15.38 with a 0.09 MPG margin of error.

Any Engine Type 4.2L L6 GAS (72) L6 GAS (25) V8 GAS (2) Any Body Style Sport Utility (22) Any Submodel North Face (1) EXT (2) Base (6) LTZ (9) LS (27) LT (27) Other (31)

Below you can see a distribution of the fuel-ups with 308 outliers (4.81%) removed.

Following shows the average MPG of each of the 103 vehicles in the system.

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• Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Mar 2018 • 184 Fuel-ups

  Property of JerseyDualSport

• 13.0 Avg MPG

• Chevrolet Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Oct 2017 • 112 Fuel-ups

  Property of nehls

• 16.7 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Jan 2017 • 124 Fuel-ups

  Property of bclark8767

• 14.9 Avg MPG

• Truck

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added May 2019 • 78 Fuel-ups

  Property of caseyelaw

• 15.7 Avg MPG

• 2003 Chevrolet Trailblazer LS 4.2L

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed
  Added Dec 2016 • 68 Fuel-ups

  Property of Noslein303

• 14.0 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Feb 2017 • 38 Fuel-ups

  Property of paulkamprath

• 14.0 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer LTZ 4.2L L6 GAS Automatic 4 Speed
  Added Mar 2020 • 3 Fuel-ups

  Property of JoeyIrick

• 12.7 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Sep 2019 • 16 Fuel-ups

  Property of JERSEY_DUAL_SPORT

• 13.7 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Nov 2018 • 50 Fuel-ups

  Property of DeeEnda

• 13.6 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed
  Added Oct 2015 • 115 Fuel-ups

  Property of landk2014

• 16.9 Avg MPG

• TB

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Sep 2014 • 233 Fuel-ups

  Property of FordNova

• 14.7 Avg MPG

• Boba Fett

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Nov 2019 • 5 Fuel-ups

  Property of Dishtowel973

• 15.9 Avg MPG

• My Trailblazer

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

  Property of elibeck88

• 13.3 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed
  Added Jan 2018 • 72 Fuel-ups

  Property of jimbob65

• 14.5 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LTZ 4.2L L6 GAS Automatic 4 Speed
  Added Mar 2017 • 175 Fuel-ups

  Property of PAChaput

• 15.5 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed
  Added Apr 2018 • 13 Fuel-ups

  Property of weeksjl

• 26.6 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic Sport Utility
  Added Mar 2018 • 66 Fuel-ups

  Property of Satche

• 17.9 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed
  Added Jan 2018 • 64 Fuel-ups

  Property of Wocking

• 15.6 Avg MPG

• My Trailblazer

  2003 Chevrolet Trailblazer LS 4.2L L6 GAS Automatic 4 Speed
  Added May 2018 • 9 Fuel-ups

  Property of Draco7182

• 14.5 Avg MPG

• Trailblazer

  2003 Chevrolet Trailblazer LT 4.2L L6 GAS Automatic 4 Speed Sport Utility
  Added Jul 2017 • 62 Fuel-ups

  Property of powerstop

• 15.5 Avg MPG

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