Based on data from 154 vehicles, 14,405 fuel-ups and 3,674,862 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 493 outliers (3.31%) removed.

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

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• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 3 Fuel-ups

  Property of ScreamingGoat

• 22.5 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2016 • 24 Fuel-ups

  Property of sjrahn

• 19.4 Avg MPG

• 2009 Pontiac G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Mar 2011 • 176 Fuel-ups

  Property of OP

• 16.5 Avg MPG

• My G8

  2009 Pontiac G8 GT 3.6L GAS V6 Automatic 5 Sedan (4 Door)
  Added Nov 2014 • 87 Fuel-ups

  Property of sarahjane

• 14.7 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 38 Fuel-ups

  Property of kcage9

• 19.7 Avg MPG

• My G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed
  Added Nov 2016 • 12 Fuel-ups

  Property of Fleisher08

• 13.7 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Apr 2016 • 10 Fuel-ups

  Property of aussiek2000

• 10.9 Avg MPG

• 2009 Pontiac G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Sep 2016 • 192 Fuel-ups

  Property of lenmartin23

• 20.9 Avg MPG

• SnowWhite

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Apr 2015 • 40 Fuel-ups

  Property of Boosty

• 18.1 Avg MPG

• Silver G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2012 • 138 Fuel-ups

  Property of swalle

• 20.8 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Apr 2011 • 261 Fuel-ups

  Property of geobrz

• 17.1 Avg MPG

• My G8

  2009 Pontiac G8 GT 6L GAS V8 Automatic 6
  Added Feb 2015 • 26 Fuel-ups

  Property of Bizzy8

• 16.3 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2017 • 87 Fuel-ups

  Property of jlutz452

• 22.5 Avg MPG

• 2009 Pontiac G8 GXP, automatic

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed Sedan
  Added May 2014 • 26 Fuel-ups

  Property of AdamG8GXP

• 16.5 Avg MPG

• 2009 Pontiac G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2015 • 6 Fuel-ups

  Property of OP

• 18.1 Avg MPG

• Mike's G8 GT

  2009 Pontiac G8 GAS V8
  Added Apr 2012 • 178 Fuel-ups

  Property of ohiog8

• 17.7 Avg MPG

• Pontiac G8 GXP

  2009 Pontiac G8 GAS V8
  Added Jul 2012 • 47 Fuel-ups

  Property of cynic783

• 17.3 Avg MPG

• 09 SRM G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Sedan (4 Door)
  Added Aug 2015 • 17 Fuel-ups

  Property of KrautWI

• 21.2 Avg MPG

• My G8

  2009 Pontiac G8 GT 6L GAS V8 Automatic 6 Sedan (4 Door)
  Added Mar 2015 • 15 Fuel-ups

  Property of Pb_Foot

• 14.2 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2019 • 52 Fuel-ups

  Property of 94vortech

• 25.6 Avg MPG

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