Based on data from 152 vehicles, 14,122 fuel-ups and 3,609,542 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 471 outliers (3.23%) removed.

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

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• My G8

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed
  Added Jun 2023 • 5 Fuel-ups

  Property of GMdave

• 13.2 Avg MPG

• G8 GT

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

  Property of JoshHefnerX

• 17.6 Avg MPG

• NYLA

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Aug 2018 • 129 Fuel-ups

  Property of RayR0lls

• 15.6 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Sep 2016 • 299 Fuel-ups

  Property of L13Jameson

• 18.3 Avg MPG

• G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed
  Added Aug 2016 • 544 Fuel-ups

  Property of glvandenberg

• 22.7 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2018 • 68 Fuel-ups

  Property of johnboy7721

• 17.9 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2017 • 55 Fuel-ups

  Property of Fransysco

• 16.2 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Dec 2018 • 74 Fuel-ups

  Property of tah1169

• 19.0 Avg MPG

• -G8-

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2021 • 24 Fuel-ups

  Property of dmccleary

• 17.4 Avg MPG

• GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed Sedan
  Added Jan 2022 • 23 Fuel-ups

  Property of DAVe3283

• 20.8 Avg MPG

• Pontiac

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2017 • 173 Fuel-ups

  Property of MotorHeadLS85

• 18.7 Avg MPG

• G8GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Nov 2010 • 462 Fuel-ups

  Property of Quick4Door

• 18.0 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Aug 2013 • 142 Fuel-ups

  Property of GrandPrix46

• 18.7 Avg MPG

• My G8

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed
  Added Oct 2018 • 61 Fuel-ups

  Property of kgraves0711

• 15.8 Avg MPG

• Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2017 • 218 Fuel-ups

  Property of awilhelm

• 18.3 Avg MPG

• Black Beast

  2009 Pontiac G8 GT 6L GAS V8 Automatic 6 Sedan (4 Door)
  Added Feb 2015 • 113 Fuel-ups

  Property of Vman15

• 20.0 Avg MPG

• Clubsport R8 E Series

  2009 Pontiac G8 GXP ٦٫٢L V8 GAS Automatic 6 Speed
  Added Sep 2018 • 41 Fuel-ups

  Property of san777

• 13.2 Avg MPG

• 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

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