Based on data from 40 vehicles, 2,970 fuel-ups and 786,737 miles of driving, the 2009 GMC Sierra 2500 HD gets a combined Avg MPG of 12.21 with a 0.13 MPG margin of error.

Any Engine Type 6.0L V8 GAS (18) 6.6L V8 DIESEL (17) V8 DIESEL (3) V8 GAS (2) Any Body Style Extended Cab Pickup (4) Crew Cab Pickup (12) Any Submodel WT (2) SLE (15) SLT (18) Other (5)

Below you can see a distribution of the fuel-ups with 56 outliers (1.85%) removed.

Following shows the average MPG of each of the 40 vehicles in the system.

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• 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 Dec 2023 • 18 Fuel-ups

  Property of Morts

• 9.2 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

• 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

• 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

• Sierra

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2016 • 35 Fuel-ups

  Property of jordanm1653

• 15.9 Avg MPG

• 2500HD GMC

  2009 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added Oct 2016 • 166 Fuel-ups

  Property of phillyturbosix

• 13.0 Avg MPG

• My Sierra 2500 HD

  2009 GMC Sierra 2500 HD WT 6.0L V8 GAS Automatic 6 Speed
  Added Jul 2016 • 8 Fuel-ups

  Property of arcamp00

• 18.6 Avg MPG

• DD Truck

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2013 • 13 Fuel-ups

  Property of Diesel11

• 15.7 Avg MPG

• My Sierra 2500 HD

  2009 GMC Sierra 2500 HD SLT 6.6L DIESEL V8 Automatic 6
  Added Dec 2014 • 32 Fuel-ups

  Property of hawaiif4i

• 18.9 Avg MPG

• Wilma

  2009 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2015 • 7 Fuel-ups

  Property of joshsill

• 14.6 Avg MPG

• WarPossum

  2009 GMC Sierra 2500 HD SLT 6L GAS V8 Automatic 6 Crew Cab Pickup (4 Door)
  Added Mar 2015 • 6 Fuel-ups

  Property of Cousineddie

• 14.4 Avg MPG

• SIERRA 2500HD

  2009 GMC Sierra 2500 HD SLT 6.6L DIESEL V8 Automatic 6 Cab & Chassis (4 Door)
  Added Jul 2014 • 19 Fuel-ups

  Property of petteca

• 16.2 Avg MPG

• Sierra

  2009 GMC Sierra 2500 HD GAS V8
  Added Mar 2014 • 4 Fuel-ups

  Property of Aleeyan

• 7.5 Avg MPG

• GMC

  2009 GMC Sierra 2500 HD GAS V8
  Added Feb 2013 • 13 Fuel-ups

  Property of Boatdrinks

• 13.3 Avg MPG

• Allison

  2009 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2016 • 27 Fuel-ups

  Property of shrek01gt

• 13.4 Avg MPG

• 09 GMC 2500HD

  2009 GMC Sierra 2500 HD DIESEL V8
  Added Feb 2012 • 22 Fuel-ups

  Property of MattBailey

• 13.9 Avg MPG

• DuramaxTD

  2009 GMC Sierra 2500 HD DIESEL V8
  Added Jul 2011 • 18 Fuel-ups

  Property of Machine23

• 18.3 Avg MPG

• Truck

  2009 GMC Sierra 2500 HD DIESEL V8
  Added Jul 2011 • 19 Fuel-ups

  Property of Tkreimer

• 13.8 Avg MPG

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