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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• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added May 2016 • 216 Fuel-ups

  Property of Brucejay

• 18.9 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2009 • 287 Fuel-ups

  Property of JoshHefnerX

• 17.8 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Mar 2012 • 83 Fuel-ups

  Property of Buergermeister

• 19.6 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Aug 2013 • 100 Fuel-ups

  Property of GrandPrix46

• 18.6 Avg MPG

• 2009 G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2020 • 20 Fuel-ups

  Property of RP9890

• 16.6 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2017 • 47 Fuel-ups

  Property of Fransysco

• 16.4 Avg MPG

• G8 GXP

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed
  Added May 2017 • 75 Fuel-ups

  Property of KOESTERS17

• 15.0 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Dec 2018 • 47 Fuel-ups

  Property of tah1169

• 19.0 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Apr 2016 • 37 Fuel-ups

  Property of CRWgxp

• 17.4 Avg MPG

• My G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Mar 2018 • 42 Fuel-ups

  Property of johnboy7721

• 17.9 Avg MPG

• G8GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Nov 2010 • 457 Fuel-ups

  Property of Quick4Door

• 18.0 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Jul 2020 • 51 Fuel-ups

  Property of G8user1291

• 17.7 Avg MPG

• Pontiac G8

  2009 Pontiac G8 3.6L V6 GAS Automatic 5 Speed Sedan
  Added Jun 2014 • 201 Fuel-ups

  Property of pyroman5050

• 21.0 Avg MPG

• Kermit

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

  Property of Kermits

• 11.5 Avg MPG

• G8 GT

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Dec 2017 • 521 Fuel-ups

  Property of rjones87

• 17.0 Avg MPG

• Black Beast

  2009 Pontiac G8 GT 6L GAS V8 Automatic 6 Sedan (4 Door)
  Added Feb 2015 • 104 Fuel-ups

  Property of Vman15

• 20.2 Avg MPG

• Gr8G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added Sep 2018 • 39 Fuel-ups

  Property of maybu

• 19.1 Avg MPG

• ROO-BEE Unicorn

  2009 Pontiac G8 GXP 6.2L V8 GAS Manual 6 Speed Sedan
  Added Jun 2018 • 67 Fuel-ups

  Property of jkf243

• 16.2 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2013 • 114 Fuel-ups

  Property of OverlordSpock

• 18.2 Avg MPG

• G8

  2009 Pontiac G8 GT 6.0L V8 GAS Automatic 6 Speed Sedan
  Added May 2012 • 473 Fuel-ups

  Property of johnnyservice

• 17.0 Avg MPG

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