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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• Imp

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Nov 2018 • 3 Fuel-ups

  Property of Porckchop

• 21.4 Avg MPG

• Impala

  2003 Chevrolet Impala 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Sep 2016 • 310 Fuel-ups

  Property of smitty7

• 20.9 Avg MPG

• Impala 2

  2003 Chevrolet Impala LS Sport 3.8L V6 GAS Automatic 4 Speed
  Added Dec 2017 • 3 Fuel-ups

  Property of bnor6

• 35.5 Avg MPG

• Christopher Sieg

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 107 Fuel-ups

  Property of Siggystyle

• 23.7 Avg MPG

• My Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed
  Added May 2018 • 6 Fuel-ups

  Property of colebixler36

• 24.8 Avg MPG

• My Impala

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed
  Added Nov 2017 • 23 Fuel-ups

  Property of slimjm

• 15.7 Avg MPG

• My Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 7 Fuel-ups

  Property of missjustine24

• 23.4 Avg MPG

• 2003 Impala

  2003 Chevrolet Impala 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Nov 2017 • 12 Fuel-ups

  Property of Jon1206

• 17.1 Avg MPG

• Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Oct 2017 • 222 Fuel-ups

  Property of dreamaker1968

• 21.4 Avg MPG

• Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed
  Added Dec 2016 • 91 Fuel-ups

  Property of mparker

• 30.0 Avg MPG

• Car

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Mar 2017 • 32 Fuel-ups

  Property of Mbrooks12

• 27.2 Avg MPG

• Impala

  2003 Chevrolet Impala 3.8L V6 GAS Automatic 4 Speed Sedan
  Added May 2017 • 17 Fuel-ups

  Property of haywood58

• 28.7 Avg MPG

• Car

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Jan 2020 • 407 Fuel-ups

  Property of CJ_Fraser_2020

• 23.2 Avg MPG

• My car

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 105 Fuel-ups

  Property of lodafrye

• 18.0 Avg MPG

• BEEDER

  2003 Chevrolet Impala 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Oct 2014 • 161 Fuel-ups

  Property of TeeDubbDizzle

• 25.1 Avg MPG

• Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added May 2016 • 68 Fuel-ups

  Property of pivonka68

• 26.2 Avg MPG

• Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Sep 2017 • 83 Fuel-ups

  Property of Drcorvette

• 23.1 Avg MPG

• Impala

  2003 Chevrolet Impala LS 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Feb 2014 • 12 Fuel-ups

  Property of welldgeo

• 30.5 Avg MPG

• Impala

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Aug 2016 • 131 Fuel-ups

  Property of asage

• 26.2 Avg MPG

• Emily

  2003 Chevrolet Impala 3.4L V6 GAS Automatic 4 Speed Sedan
  Added Aug 2016 • 6 Fuel-ups

  Property of Hingere

• 27.2 Avg MPG

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