Based on data from 39 vehicles, 1,823 fuel-ups and 541,201 miles of driving, the 2003 Pontiac Grand Prix gets a combined Avg MPG of 21.53 with a 0.22 MPG margin of error.

Any Engine Type 3.1L V6 GAS (8) 3.8L V6 GAS (17) GAS (1) V6 GAS (12) Any Body Style Sedan (5) Coupe (1) Any Submodel GTP (1) SE (9) GT (16) Other (13)

Below you can see a distribution of the fuel-ups with 61 outliers (3.24%) removed.

Following shows the average MPG of each of the 39 vehicles in the system.

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• 2003 Grand Prix

  2003 Pontiac Grand Prix SE 3.1L GAS V6 Automatic 4 Sedan (4 Door)
  Added Sep 2014 • 4 Fuel-ups

  Property of bnmn

• 24.9 Avg MPG

• car

  2003 Pontiac Grand Prix GT 3.8L GAS V6 Automatic 4 Sedan (4 Door)
  Added Feb 2013 • 78 Fuel-ups

  Property of rcn936

• 24.2 Avg MPG

• cafer

  2003 Pontiac Grand Prix GAS V6
  Added May 2014 • 3 Fuel-ups

  Property of oktayelipek

• 83.1 Avg MPG

• GP

  2003 Pontiac Grand Prix SE 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 63 Fuel-ups

  Property of sgrbear2k

• 28.9 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GAS V6
  Added Apr 2013 • 24 Fuel-ups

  Property of knh208

• 26.1 Avg MPG

• Paula

  2003 Pontiac Grand Prix GAS V6
  Added May 2013 • 13 Fuel-ups

  Property of ChevroletTough

• 25.8 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GAS V6
  Added May 2012 • 19 Fuel-ups

  Property of smil27

• 18.5 Avg MPG

• Silver GP GT

  2003 Pontiac Grand Prix GAS
  Added May 2009 • 85 Fuel-ups

  Property of SeanHenry

• 23.6 Avg MPG

• Prixse

  2003 Pontiac Grand Prix GAS V6
  Added Feb 2012 • 75 Fuel-ups

  Property of Prixse3

• 26.0 Avg MPG

• Pontiac Grand Prix GT2

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 42 Fuel-ups

  Property of RedRacer702

• 19.0 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GAS V6
  Added Feb 2012 • 18 Fuel-ups

  Property of AlexB

• 15.0 Avg MPG

• Pontiac

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Apr 2022 • 29 Fuel-ups

  Property of AllEmptyRacing

• 24.0 Avg MPG

• GTP

  2003 Pontiac Grand Prix GAS V6
  Added Jul 2010 • 100 Fuel-ups

  Property of Darren5L

• 22.3 Avg MPG

• White Terror

  2003 Pontiac Grand Prix GAS V6
  Added Nov 2008 • 13 Fuel-ups

  Property of RKnapp

• 24.8 Avg MPG

• GPGT

  2003 Pontiac Grand Prix GAS V6
  Added May 2009 • 109 Fuel-ups

  Property of Guerrin

• 19.2 Avg MPG

• 03 Grand Prix

  2003 Pontiac Grand Prix GAS V6
  Added Nov 2009 • 4 Fuel-ups

  Property of jgbucks

• 22.2 Avg MPG

• First Car

  2003 Pontiac Grand Prix SE Automatic 4 Sedan (4 Door)
  Added Jan 2015 • 60 Fuel-ups

  Property of Chevrasaki

• 24.0 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GAS V6
  Added Nov 2008 • 16 Fuel-ups

  Property of mswintle

• 26.3 Avg MPG

• My Car

  2003 Pontiac Grand Prix GAS V6
  Added Aug 2008 • 9 Fuel-ups

  Property of rbtm2006

• 14.6 Avg MPG

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