Based on data from 34 vehicles, 2,134 fuel-ups and 587,994 miles of driving, the 2009 GMC Sierra 2500 HD gets a combined Avg MPG of 12.50 with a 0.16 MPG margin of error.

Any Engine Type 6.0L V8 GAS (12) 6.6L V8 DIESEL (16) V8 DIESEL (3) V8 GAS (2) Any Body Style Extended Cab Pickup (3) Crew Cab Pickup (9) Any Submodel WT (1) SLE (13) SLT (14) Other (6)

Below you can see a distribution of the fuel-ups with 40 outliers (1.84%) removed.

Following shows the average MPG of each of the 34 vehicles in the system.

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• Pewter Peanut

  2009 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added Feb 2017 • 366 Fuel-ups

  Property of polymonkey

• 10.7 Avg MPG

• 2009 GMC Sierra 2500 HD

  2009 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2020 • 28 Fuel-ups

  Property of meisterllc28

• 14.1 Avg MPG

• Floofy

  2009 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed Extended Cab Pickup
  Added May 2020 • 44 Fuel-ups

  Property of Piotrowski

• 11.4 Avg MPG

• GMC Sierra

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
  Added Oct 2017 • 87 Fuel-ups

  Property of pcarst

• 12.6 Avg MPG

• GMC SLT

  2009 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 400 Fuel-ups

  Property of kuneyr

• 12.0 Avg MPG

• Truck

  2009 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Nov 2019 • 118 Fuel-ups

  Property of robindks

• 11.9 Avg MPG

• GMC Sierra 2500 HD

  2009 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2019 • 49 Fuel-ups

  Property of macdaddytn

• 14.7 Avg MPG

• My Sierra 2500 HD

  2009 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added Oct 2018 • 89 Fuel-ups

  Property of lab4747

• 10.2 Avg MPG

• Sierra

  2009 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2018 • 137 Fuel-ups

  Property of mtfredricks

• 17.2 Avg MPG

• 09 Gmc

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2019 • 94 Fuel-ups

  Property of thepetzahut

• 13.6 Avg MPG

• 2009 GMC Sierra 2500 HD

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Jan 2018 • 15 Fuel-ups

  Property of rhpackard

• 19.2 Avg MPG

• GMC 2500

  2009 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Aug 2019 • 9 Fuel-ups

  Property of woodjod

• 11.1 Avg MPG

• 2009 GMC SIERRA

  2009 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2016 • 28 Fuel-ups

  Property of wdkgecko

• 13.7 Avg MPG

• My dirtymax

  2009 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Dec 2017 • 47 Fuel-ups

  Property of dirtymax2009

• 13.0 Avg MPG

• 2009 GMC

  2009 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 18 Fuel-ups

  Property of Morts

• 9.2 Avg MPG

• 2009 GMC 2500 Duramax

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2013 • 227 Fuel-ups

  Property of PFTG20

• 14.8 Avg MPG

• 09 Sierra 2500HD

  2009 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed Extended Cab Pickup
  Added Feb 2016 • 81 Fuel-ups

  Property of elongman

• 11.3 Avg MPG

• My Sierra 2500 HD

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2017 • 23 Fuel-ups

  Property of mallett427

• 15.0 Avg MPG

• 106 (Blue)

  2009 GMC Sierra 2500 HD Custom Submodel Automatic 6 Speed
  Added Sep 2017 • 4 Fuel-ups

  Property of leorstanley

• 9.9 Avg MPG

• Sierra

  2009 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Sep 2010 • 195 Fuel-ups

  Property of GoGreen

• 11.0 Avg MPG

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