Based on data from 142 vehicles, 11,768 fuel-ups and 3,026,743 miles of driving, the 2009 Pontiac G8 gets a combined Avg MPG of 17.89 with a 0.07 MPG margin of error.

Any Engine Type 3.6L V6 GAS (11) 6.0L V8 GAS (71) 6.2L V8 GAS (14) V6 GAS (2) V8 GAS (39) Any Body Style Sedan (48) Any Submodel Base (11) GXP (14) GT (72) Other (45)

Below you can see a distribution of the fuel-ups with 397 outliers (3.26%) removed.

Following shows the average MPG of each of the 142 vehicles in the system.

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• Vanessa

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed
  Added Mar 2018 • 8 Fuel-ups

  Property of zwigard

• 20.3 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added Sep 2012 • 4 Fuel-ups

  Property of nattyism87

• 22.8 Avg MPG

• Pontiac G8 GT

  2009 Pontiac G8 GAS V8
  Added Feb 2012 • 15 Fuel-ups

  Property of cynic783

• 18.8 Avg MPG

• My SixPointOh

  2009 Pontiac G8 GAS V8
  Added Jul 2012 • 5 Fuel-ups

  Property of JAPG8

• 20.0 Avg MPG

• My G8 GT

  2009 Pontiac G8 GAS V8
  Added Dec 2011 • 25 Fuel-ups

  Property of mattsimmons

• 17.5 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added May 2012 • 27 Fuel-ups

  Property of cheimberg

• 18.9 Avg MPG

• Eric's G8

  2009 Pontiac G8 GAS V8
  Added Aug 2011 • 34 Fuel-ups

  Property of Eras15

• 15.6 Avg MPG

• G8

  2009 Pontiac G8 GAS V8
  Added May 2012 • 3 Fuel-ups

  Property of brentsten

• 27.8 Avg MPG

• Pontiac G8 GT

  2009 Pontiac G8 GAS V8
  Added Jul 2010 • 102 Fuel-ups

  Property of djanakin

• 19.4 Avg MPG

• My G8

  2009 Pontiac G8 GAS V8
  Added Jul 2011 • 20 Fuel-ups

  Property of ebpludesh

• 18.1 Avg MPG

• Potato

  2009 Pontiac G8 GAS V8
  Added Dec 2011 • 12 Fuel-ups

  Property of Libertysyclone

• 18.0 Avg MPG

• 09 G8GT

  2009 Pontiac G8 GAS V8
  Added May 2011 • 3 Fuel-ups

  Property of bluegoat06

• 22.2 Avg MPG

• G8

  2009 Pontiac G8 GAS V8
  Added Apr 2011 • 38 Fuel-ups

  Property of didgers

• 24.3 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added May 2010 • 27 Fuel-ups

  Property of Freddy

• 18.9 Avg MPG

• G8 E85

  2009 Pontiac G8
  Added Jul 2011 • 4 Fuel-ups

  Property of michael55123

• 14.1 Avg MPG

• 2009 G8 GXP

  2009 Pontiac G8
  Added Jun 2011 • 7 Fuel-ups

  Property of MichaelA

• 17.4 Avg MPG

• G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed Sedan
  Added Sep 2017 • 4 Fuel-ups

  Property of Fransysco

• 21.2 Avg MPG

• zazon

  2009 Pontiac G8 GAS V8
  Added Jan 2010 • 151 Fuel-ups

  Property of zaze

• 16.2 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added Oct 2010 • 17 Fuel-ups

  Property of bballr4567

• 17.7 Avg MPG

• GT

  2009 Pontiac G8 GAS V8
  Added Jun 2010 • 15 Fuel-ups

  Property of saco09GT

• 19.3 Avg MPG

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