Based on data from 154 vehicles, 14,497 fuel-ups and 3,695,036 miles of driving, the 2009 Pontiac G8 gets a combined Avg MPG of 17.75 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 495 outliers (3.30%) removed.

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

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• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2018 • 319 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 • 315 Fuel-ups

  Property of agra27

• 12.7 Avg MPG

• GREY8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Feb 2013 • 443 Fuel-ups

  Property of Plumman

• 17.7 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 419 Fuel-ups

  Property of Sbaneck

• 19.9 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2022 • 88 Fuel-ups

  Property of Jacksonpage

• 14.3 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Sep 2018 • 402 Fuel-ups

  Property of nateshawk

• 18.4 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2021 • 693 Fuel-ups

  Property of kamilw

• 20.2 Avg MPG

• Commodore

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Jan 2025 • 6 Fuel-ups

  Property of wi111y

• 15.0 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2019 • 122 Fuel-ups

  Property of blackronin

• 17.0 Avg MPG

• Mi M8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2023 • 78 Fuel-ups

  Property of Logan-_-

• 17.5 Avg MPG

• G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed
  Added Apr 2017 • 207 Fuel-ups

  Property of auslndr

• 22.0 Avg MPG

• Clubsport R8 E Series

  2009 Pontiac G8 GXP ٦٫٢L V8 GAS Automatic 6 Speed
  Added Sep 2018 • 43 Fuel-ups

  Property of san777

• 13.1 Avg MPG

• G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed
  Added Aug 2016 • 566 Fuel-ups

  Property of glvandenberg

• 22.7 Avg MPG

• INSTG8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2018 • 172 Fuel-ups

  Property of OMGnanerpus

• 14.1 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2009 • 322 Fuel-ups

  Property of JoshHefnerX

• 17.6 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2019 • 233 Fuel-ups

  Property of sulemankhan_

• 14.1 Avg MPG

• Pontiac G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed Sedan
  Added Sep 2012 • 219 Fuel-ups

  Property of tinagreen5

• 27.0 Avg MPG

• My G8

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed
  Added Sep 2024 • 13 Fuel-ups

  Property of Zyler9009

• 8.8 Avg MPG

• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Aug 2016 • 406 Fuel-ups

  Property of nick58b

• 16.6 Avg MPG

• G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed
  Added May 2017 • 92 Fuel-ups

  Property of KOESTERS17

• 15.1 Avg MPG

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