Based on data from 82 vehicles, 4,724 fuel-ups and 1,267,828 miles of driving, the 2003 Chevrolet Impala gets a combined Avg MPG of 21.61 with a 0.14 MPG margin of error.

Any Engine Type 3.4L V6 GAS (24) 3.8L V6 GAS (29) V6 GAS (28) Any Body Style Sedan (28) Any Submodel LS Sport (4) LS (17) Base (32) Other (29)

Below you can see a distribution of the fuel-ups with 282 outliers (5.63%) removed.

Following shows the average MPG of each of the 82 vehicles in the system.

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• Chevrolet Impala

  2003 Chevrolet Impala GAS V6
  Added Feb 2012 • 33 Fuel-ups

  Property of qwer9182

• 32.4 Avg MPG

• Silver Bullet

  2003 Chevrolet Impala GAS V6
  Added Apr 2013 • 5 Fuel-ups

  Property of CromeNite

• 20.2 Avg MPG

• Z-Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 196 Fuel-ups

  Property of seanmcauley

• 28.7 Avg MPG

• White Impala

  2003 Chevrolet Impala GAS V6
  Added May 2012 • 15 Fuel-ups

  Property of kcs02s

• 24.7 Avg MPG

• Birdie

  2003 Chevrolet Impala GAS V6
  Added Apr 2011 • 66 Fuel-ups

  Property of mvanzante

• 24.0 Avg MPG

• Impala

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Aug 2017 • 58 Fuel-ups

  Property of silenthusky

• 26.3 Avg MPG

• Impala

  2003 Chevrolet Impala 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 132 Fuel-ups

  Property of terryfcox

• 22.0 Avg MPG

• Impala

  2003 Chevrolet Impala GAS V6
  Added Apr 2012 • 9 Fuel-ups

  Property of keldos

• 21.6 Avg MPG

• 03 Impala

  2003 Chevrolet Impala GAS V6
  Added Jan 2012 • 13 Fuel-ups

  Property of dain42

• 30.5 Avg MPG

• Impala

  2003 Chevrolet Impala GAS V6
  Added Sep 2011 • 26 Fuel-ups

  Property of rukrusher

• 25.0 Avg MPG

• Shevy

  2003 Chevrolet Impala GAS V6
  Added Nov 2008 • 148 Fuel-ups

  Property of Leeman

• 27.6 Avg MPG

• Old Bessy

  2003 Chevrolet Impala GAS V6
  Added Jul 2010 • 52 Fuel-ups

  Property of caffeinatedconc

• 23.7 Avg MPG

• Natalie

  2003 Chevrolet Impala GAS V6
  Added Oct 2011 • 12 Fuel-ups

  Property of bigsammoe

• 23.3 Avg MPG

• Blue

  2003 Chevrolet Impala GAS V6
  Added Jul 2011 • 23 Fuel-ups

  Property of smiller

• 27.7 Avg MPG

• 03 Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed
  Added Oct 2016 • 15 Fuel-ups

  Property of kchwhite

• 26.5 Avg MPG

• Connie

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 54 Fuel-ups

  Property of concubba

• 24.8 Avg MPG

• silver car

  2003 Chevrolet Impala GAS V6
  Added Sep 2010 • 4 Fuel-ups

  Property of josh08

• 22.3 Avg MPG

• my impala

  2003 Chevrolet Impala GAS V6
  Added May 2010 • 6 Fuel-ups

  Property of nhynes

• 24.9 Avg MPG

• Impala

  2003 Chevrolet Impala GAS V6
  Added Oct 2008 • 52 Fuel-ups

  Property of Roman

• 23.2 Avg MPG

• Uncle C

  2003 Chevrolet Impala GAS V6
  Added Jun 2009 • 8 Fuel-ups

  Property of theeshark85

• 23.9 Avg MPG

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