Based on data from 154 vehicles, 14,434 fuel-ups and 3,681,004 miles of driving, the 2009 Pontiac G8 gets a combined Avg MPG of 17.76 with a 0.07 MPG margin of error.

Any Engine Type 3.6L V6 GAS (11) 6.0L V8 GAS (79) 6.2L V8 GAS (18) V6 GAS (2) V8 GAS (39) Any Body Style Sedan (52) Any Submodel Base (11) GXP (18) GT (80) Other (45)

Below you can see a distribution of the fuel-ups with 496 outliers (3.32%) removed.

Following shows the average MPG of each of the 154 vehicles in the system.

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• 2009 G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Apr 2018 • 456 Fuel-ups

  Property of allesg

• 19.7 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2013 • 121 Fuel-ups

  Property of OverlordSpock

• 18.2 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Mar 2012 • 113 Fuel-ups

  Property of Buergermeister

• 19.0 Avg MPG

• T.E.S.S.

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed Sedan
  Added May 2018 • 201 Fuel-ups

  Property of Merwolf93

• 19.1 Avg MPG

• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2022 • 6 Fuel-ups

  Property of Rafarent11

• 10.7 Avg MPG

• BlueG8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 132 Fuel-ups

  Property of mistergadgett

• 20.8 Avg MPG

• Pontiac G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 453 Fuel-ups

  Property of wildbill1941

• 19.5 Avg MPG

• G8

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed Sedan
  Added Feb 2022 • 6 Fuel-ups

  Property of taps442

• 19.8 Avg MPG

• Gr8G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2018 • 39 Fuel-ups

  Property of maybu

• 19.1 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Nov 2021 • 5 Fuel-ups

  Property of 335damn

• 20.1 Avg MPG

• White G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Oct 2012 • 96 Fuel-ups

  Property of gwegb

• 20.0 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Jul 2020 • 55 Fuel-ups

  Property of G8user1291

• 17.9 Avg MPG

• Pontiac G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Dec 2018 • 131 Fuel-ups

  Property of gono13

• 19.2 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Nov 2021 • 70 Fuel-ups

  Property of JarrettR

• 17.0 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added May 2016 • 233 Fuel-ups

  Property of Brucejay

• 19.0 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jan 2020 • 88 Fuel-ups

  Property of Remy_364

• 18.6 Avg MPG

• G8 Firehawk

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Jul 2014 • 26 Fuel-ups

  Property of keith455

• 20.0 Avg MPG

• Pontiac G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed Sedan
  Added Jun 2014 • 201 Fuel-ups

  Property of pyroman5050

• 21.0 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Dec 2017 • 521 Fuel-ups

  Property of rjones87

• 17.0 Avg MPG

• ROO-BEE Unicorn

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed Sedan
  Added Jun 2018 • 67 Fuel-ups

  Property of jkf243

• 16.2 Avg MPG

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