Based on data from 55 vehicles, 4,202 fuel-ups and 1,170,520 miles of driving, the 2008 Pontiac Grand Prix gets a combined Avg MPG of 21.49 with a 0.16 MPG margin of error.

Any Engine Type 3.8L V6 GAS (36) 5.3L V8 GAS (7) V6 GAS (2) V8 GAS (6) Any Body Style Sedan (17) Any Submodel GXP (7) Base (36) Other (12)

Below you can see a distribution of the fuel-ups with 87 outliers (2.03%) removed.

Following shows the average MPG of each of the 55 vehicles in the system.

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• My Grand Prix

  2008 Pontiac Grand Prix 3.8L V6 GAS Automatic 4 Speed
  Added Jan 2016 • 7 Fuel-ups

  Property of Kalin12

• 20.2 Avg MPG

• My Grand Prix

  2008 Pontiac Grand Prix 3.8L V6 GAS Automatic 4 Speed
  Added Feb 2016 • 6 Fuel-ups

  Property of tracyann34

• 28.5 Avg MPG

• Grand Prix

  2008 Pontiac Grand Prix 3.8L V6 GAS Automatic 4 Sedan (4 Door)
  Added Aug 2015 • 4 Fuel-ups

  Property of antexity

• 25.3 Avg MPG

• slave two

  2008 Pontiac Grand Prix GAS V6
  Added Jun 2013 • 57 Fuel-ups

  Property of slavetwo

• 27.2 Avg MPG

• Grand Prix

  2008 Pontiac Grand Prix
  Added Jan 2010 • 117 Fuel-ups

  Property of natedoc

• 25.5 Avg MPG

• GXP

  2008 Pontiac Grand Prix GAS V8
  Added Jun 2014 • 159 Fuel-ups

  Property of ghettojoe

• 17.4 Avg MPG

• Nyobi

  2008 Pontiac Grand Prix
  Added Aug 2013 • 5 Fuel-ups

  Property of kelsey

• 15.5 Avg MPG

• Mo's car

  2008 Pontiac Grand Prix
  Added Sep 2009 • 44 Fuel-ups

  Property of wilsonite

• 21.2 Avg MPG

• Grand Prix

  2008 Pontiac Grand Prix GAS V6
  Added Aug 2012 • 6 Fuel-ups

  Property of LQMaRiNe

• 19.6 Avg MPG

• Grand Prix

  2008 Pontiac Grand Prix 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 9 Fuel-ups

  Property of Taoted

• 41.7 Avg MPG

• Veronica

  2008 Pontiac Grand Prix GAS V8
  Added May 2012 • 12 Fuel-ups

  Property of weaslespit

• 23.5 Avg MPG

• GXP

  2008 Pontiac Grand Prix GAS V8
  Added Jun 2011 • 27 Fuel-ups

  Property of rock43053

• 21.2 Avg MPG

• ePrix

  2008 Pontiac Grand Prix
  Added Mar 2010 • 52 Fuel-ups

  Property of Eracer

• 20.6 Avg MPG

• Grand Prix GXP

  2008 Pontiac Grand Prix GAS V8
  Added Sep 2010 • 3 Fuel-ups

  Property of IndianLS4

• 16.1 Avg MPG

• Grand Prix GXP

  2008 Pontiac Grand Prix GAS V8
  Added Mar 2009 • 18 Fuel-ups

  Property of pontiacdriver

• 18.7 Avg MPG

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