Based on data from 152 vehicles, 14,123 fuel-ups and 3,609,770 miles of driving, the 2009 Pontiac G8 gets a combined Avg MPG of 17.79 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 (16) V6 GAS (2) V8 GAS (39) Any Body Style Sedan (51) Any Submodel Base (11) GXP (16) GT (80) Other (45)

Below you can see a distribution of the fuel-ups with 473 outliers (3.24%) removed.

Following shows the average MPG of each of the 152 vehicles in the system.

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• Pontiac G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed Sedan
  Added Sep 2012 • 207 Fuel-ups

  Property of tinagreen5

• 27.0 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2019 • 203 Fuel-ups

  Property of sulemankhan_

• 13.9 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2019 • 108 Fuel-ups

  Property of blackronin

• 17.0 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2022 • 61 Fuel-ups

  Property of Jacksonpage

• 14.5 Avg MPG

• Valerie

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Mar 2019 • 209 Fuel-ups

  Property of corey_ten

• 20.5 Avg MPG

• My G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed
  Added Apr 2022 • 37 Fuel-ups

  Property of slack

• 19.6 Avg MPG

• Silver G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2022 • 68 Fuel-ups

  Property of Ryyaaannnn

• 11.4 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Apr 2016 • 60 Fuel-ups

  Property of CRWgxp

• 17.7 Avg MPG

• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Aug 2016 • 395 Fuel-ups

  Property of nick58b

• 16.6 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2021 • 666 Fuel-ups

  Property of kamilw

• 20.2 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 399 Fuel-ups

  Property of Sbaneck

• 19.9 Avg MPG

• INSTG8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2018 • 145 Fuel-ups

  Property of OMGnanerpus

• 14.3 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Sep 2018 • 380 Fuel-ups

  Property of nateshawk

• 18.3 Avg MPG

• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2018 • 304 Fuel-ups

  Property of golfjunky12

• 13.6 Avg MPG

• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added May 2018 • 268 Fuel-ups

  Property of agra27

• 12.6 Avg MPG

• G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed
  Added May 2017 • 89 Fuel-ups

  Property of KOESTERS17

• 15.0 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Apr 2023 • 25 Fuel-ups

  Property of danielfunk

• 16.8 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2023 • 63 Fuel-ups

  Property of Logan-_-

• 17.7 Avg MPG

• G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed
  Added Apr 2017 • 195 Fuel-ups

  Property of auslndr

• 22.0 Avg MPG

• GREY8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Feb 2013 • 418 Fuel-ups

  Property of Plumman

• 17.8 Avg MPG

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