Based on data from 154 vehicles, 14,404 fuel-ups and 3,674,511 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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• Big Red

  2009 Pontiac G8 GAS V8
  Added Mar 2013 • 28 Fuel-ups

  Property of ChromeHelmit

• 22.1 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added Aug 2013 • 3 Fuel-ups

  Property of CaptainYARRR

• 19.3 Avg MPG

• Gianna

  2009 Pontiac G8 GAS V8
  Added Jul 2013 • 3 Fuel-ups

  Property of cpbennu

• 33.2 Avg MPG

• Chad's G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Oct 2017 • 89 Fuel-ups

  Property of ls1_sounds

• 20.3 Avg MPG

• Chad's G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2020 • 89 Fuel-ups

  Property of ls1_sounds

• 20.3 Avg MPG

• Chad's G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2020 • 89 Fuel-ups

  Property of ls1_sounds

• 20.3 Avg MPG

• Gray g8

  2009 Pontiac G8 GAS V8
  Added Nov 2012 • 32 Fuel-ups

  Property of shaunkroon

• 18.4 Avg MPG

• Taylor

  2009 Pontiac G8 GAS V8
  Added Apr 2013 • 14 Fuel-ups

  Property of CKJackson

• 17.6 Avg MPG

• GDGXP

  2009 Pontiac G8 GAS V8
  Added Jan 2013 • 11 Fuel-ups

  Property of Roadcone

• 20.6 Avg MPG

• G8

  2009 Pontiac G8 GXP 6.2L V8 GAS Standard 6 Speed
  Added Feb 2018 • 31 Fuel-ups

  Property of SoonerSS

• 20.2 Avg MPG

• G8

  2009 Pontiac G8 GAS V8
  Added Nov 2012 • 14 Fuel-ups

  Property of Chroma7

• 20.4 Avg MPG

• Black Beauty

  2009 Pontiac G8
  Added May 2010 • 132 Fuel-ups

  Property of Agose25

• 17.1 Avg MPG

• Vanessa-1969 Dodge Daytona

  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

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