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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• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2018 • 52 Fuel-ups

  Property of 94vortech

• 25.6 Avg MPG

• My G8

  2009 Pontiac G8 3.6L GAS V6 Automatic 5 Sedan (4 Door)
  Added Apr 2015 • 8 Fuel-ups

  Property of martyhackett

• 22.3 Avg MPG

• Black Beast

  2009 Pontiac G8 GAS V8
  Added Sep 2013 • 77 Fuel-ups

  Property of pontiaced25

• 19.1 Avg MPG

• Silver G8

  2009 Pontiac G8 GT 6.0L GAS V8 Automatic 6 Sedan (4 Door)
  Added Aug 2014 • 12 Fuel-ups

  Property of adhal7

• 16.7 Avg MPG

• Sportredmistress

  2009 Pontiac G8 GT 6.0L GAS V8 Automatic 6 Sedan (4 Door)
  Added Feb 2013 • 72 Fuel-ups

  Property of Slowgoing

• 16.5 Avg MPG

• G8

  2009 Pontiac G8 GAS V8
  Added Jan 2013 • 40 Fuel-ups

  Property of Rylos

• 16.3 Avg MPG

• 01 - Gunner

  2009 Pontiac G8 GAS V8
  Added Aug 2013 • 110 Fuel-ups

  Property of ProZak

• 17.7 Avg MPG

• G8

  2009 Pontiac G8 GAS V6
  Added Aug 2013 • 69 Fuel-ups

  Property of smil27

• 20.6 Avg MPG

• G8 GXP

  2009 Pontiac G8 V8 GAS Automatic 6 Speed
  Added Mar 2013 • 67 Fuel-ups

  Property of jdrison

• 17.9 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added Feb 2011 • 143 Fuel-ups

  Property of StrykerBlue

• 20.2 Avg MPG

• G8 GT

  2009 Pontiac G8 GAS V8
  Added May 2013 • 35 Fuel-ups

  Property of ercink454

• 17.1 Avg MPG

• GXP

  2009 Pontiac G8 GAS V8
  Added May 2012 • 96 Fuel-ups

  Property of gjsamps

• 19.0 Avg MPG

• Pontiac G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Nov 2020 • 151 Fuel-ups

  Property of cheimberg

• 18.7 Avg MPG

• Scarlett

  2009 Pontiac G8 V8 GAS
  Added Apr 2014 • 18 Fuel-ups

  Property of Periodic

• 14.5 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2016 • 16 Fuel-ups

  Property of Ijustworkhere

• 18.1 Avg MPG

• CompTrekkie's G8 GT

  2009 Pontiac G8 GAS V8
  Added Mar 2012 • 55 Fuel-ups

  Property of comptrekkie

• 17.6 Avg MPG

• Heaven's Gate

  2009 Pontiac G8 GAS V8
  Added Jun 2013 • 18 Fuel-ups

  Property of qboggs

• 21.0 Avg MPG

• PinderG8

  2009 Pontiac G8 GAS V8
  Added Sep 2013 • 35 Fuel-ups

  Property of pinder

• 21.5 Avg MPG

• G8

  2009 Pontiac G8 GAS V6
  Added Aug 2013 • 5 Fuel-ups

  Property of richmond2000

• 16.0 Avg MPG

• My Car

  2009 Pontiac G8 GAS V8
  Added Aug 2013 • 4 Fuel-ups

  Property of SalmonTex

• 20.0 Avg MPG

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