Based on data from 82 vehicles, 4,722 fuel-ups and 1,267,339 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 (5.64%) removed.

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

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• 2003 Impala

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed
  Added Jun 2018 • 5 Fuel-ups

  Property of dillon12

• 78.3 Avg MPG

• Winter Car

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Nov 2015 • 19 Fuel-ups

  Property of Guppster

• 17.5 Avg MPG

• Impala

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 10 Fuel-ups

  Property of markofnote

• 149.1 Avg MPG

• My Impala

  2003 Chevrolet Impala LS 3.8L GAS V6 Automatic 4 Sedan (4 Door)
  Added Feb 2015 • 5 Fuel-ups

  Property of MotoDiaries

• 20.8 Avg MPG

• Impala

  2003 Chevrolet Impala 3.8L GAS V6 Automatic 4 Sedan (4 Door)
  Added Oct 2014 • 13 Fuel-ups

  Property of nwarner2010

• 18.2 Avg MPG

• Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Oct 2017 • 11 Fuel-ups

  Property of OhMrGadget

• 24.1 Avg MPG

• 2003 Chevy Impala

  2003 Chevrolet Impala GAS V6
  Added Apr 2013 • 64 Fuel-ups

  Property of JMeler

• 25.3 Avg MPG

• impala

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2014 • 66 Fuel-ups

  Property of mhaugen

• 22.5 Avg MPG

• impala

  2003 Chevrolet Impala 3.4L GAS V6 Automatic 4
  Added Jun 2014 • 4 Fuel-ups

  Property of plus4

• 26.7 Avg MPG

• Silvia

  2003 Chevrolet Impala
  Added Sep 2016 • 121 Fuel-ups

  Property of slammers

• 26.4 Avg MPG

• Imp

  2003 Chevrolet Impala GAS V6
  Added May 2013 • 44 Fuel-ups

  Property of tdhome

• 21.7 Avg MPG

• 03 Impala

  2003 Chevrolet Impala GAS V6
  Added Mar 2014 • 4 Fuel-ups

  Property of nwarner2010

• 20.3 Avg MPG

• pala

  2003 Chevrolet Impala GAS V6
  Added Feb 2014 • 6 Fuel-ups

  Property of mrdarkwingduck

• 22.0 Avg MPG

• Lente Erosion

  2003 Chevrolet Impala V6 GAS
  Added Sep 2013 • 3 Fuel-ups

  Property of Hrel

• 20.5 Avg MPG

• Black Betty

  2003 Chevrolet Impala GAS V6
  Added Mar 2012 • 38 Fuel-ups

  Property of asinnerssaint

• 21.7 Avg MPG

• Impala

  2003 Chevrolet Impala GAS V6
  Added May 2011 • 34 Fuel-ups

  Property of Jgende3

• 24.4 Avg MPG

• Impala

  2003 Chevrolet Impala GAS V6
  Added Jul 2012 • 16 Fuel-ups

  Property of KJSmith87

• 22.3 Avg MPG

• Impala

  2003 Chevrolet Impala GAS V6
  Added Jan 2013 • 13 Fuel-ups

  Property of sinnwell

• 24.7 Avg MPG

• 03 Impala

  2003 Chevrolet Impala GAS V6
  Added Mar 2013 • 10 Fuel-ups

  Property of Dadelius

• 27.6 Avg MPG

• Polly

  2003 Chevrolet Impala GAS V6
  Added Jun 2013 • 13 Fuel-ups

  Property of hanaldo

• 30.1 Avg MPG

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