Based on data from 38 vehicles, 1,738 fuel-ups and 511,340 miles of driving, the 2003 Pontiac Grand Prix gets a combined Avg MPG of 21.31 with a 0.23 MPG margin of error.

Any Engine Type 3.1L V6 GAS (7) 3.8L V6 GAS (17) GAS (1) V6 GAS (12) Any Body Style Sedan (6) Coupe (1) Any Submodel GTP (1) SE (8) GT (16) Other (13)

Below you can see a distribution of the fuel-ups with 57 outliers (3.18%) removed.

Following shows the average MPG of each of the 38 vehicles in the system.

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• My Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Dec 2020 • 5 Fuel-ups

  Property of SinisterK20

• 15.9 Avg MPG

• My Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2020 • 11 Fuel-ups

  Property of justin_riddle

• 20.5 Avg MPG

• My Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Apr 2018 • 51 Fuel-ups

  Property of canoneos

• 22.2 Avg MPG

• My Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Jul 2019 • 29 Fuel-ups

  Property of lepird7

• 22.3 Avg MPG

• Gtp

  2003 Pontiac Grand Prix GTP 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 274 Fuel-ups

  Property of CalvinGTP

• 17.3 Avg MPG

• Gus

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Jan 2018 • 37 Fuel-ups

  Property of qwolff

• 21.5 Avg MPG

• My Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 48 Fuel-ups

  Property of ryrygotjoy

• 23.6 Avg MPG

• Zsold GrandPrix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Jun 2015 • 40 Fuel-ups

  Property of wkdavis89

• 24.9 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 5 Fuel-ups

  Property of Blackhills

• 17.6 Avg MPG

• Black Pontiac

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed Coupe
  Added Mar 2017 • 14 Fuel-ups

  Property of LordCemOnur

• 12.2 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Mar 2017 • 215 Fuel-ups

  Property of Trebmik

• 21.0 Avg MPG

• Marco's car

  2003 Pontiac Grand Prix SE 3.1L V6 GAS Automatic 4 Speed Sedan
  Added May 2017 • 103 Fuel-ups

  Property of WhipSnip

• 21.3 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2017 • 27 Fuel-ups

  Property of Lucan89

• 24.1 Avg MPG

• Grand Prix

  2003 Pontiac Grand Prix SE 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 145 Fuel-ups

  Property of dwneylonsr

• 24.3 Avg MPG

• Pontiac Grand Prix

  2003 Pontiac Grand Prix SE 3.1L V6 GAS Automatic 4 Speed
  Added Aug 2016 • 122 Fuel-ups

  Property of alalonde87

• 20.6 Avg MPG

• My Grand Prix

  2003 Pontiac Grand Prix SE 3.1L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 7 Fuel-ups

  Property of Gvllvgher

• 21.4 Avg MPG

• The Office

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4 Speed
  Added Dec 2015 • 3 Fuel-ups

  Property of knuck

• 17.1 Avg MPG

• Grand Prix GT

  2003 Pontiac Grand Prix GT 3.8L V6 GAS Automatic 4
  Added Jul 2015 • 3 Fuel-ups

  Property of jstacoder

• 6.5 Avg MPG

• 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

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