Based on data from 48 vehicles, 2,847 fuel-ups and 913,876 miles of driving, the 2013 GMC Sierra 2500 HD gets a combined Avg MPG of 12.43 with a 0.12 MPG margin of error.

Any Engine Type 6.0L V8 CNG (1) 6.0L V8 FLEX (6) 6.0L V8 GAS (3) 6.6L V8 DIESEL (33) DIESEL (1) V8 DIESEL (3) V8 GAS (1) Any Body Style Extended Cab Pickup (6) Crew Cab Pickup (8) Any Submodel WT (4) SLT (10) Denali (13) SLE (16) Other (5)

Below you can see a distribution of the fuel-ups with 110 outliers (3.72%) removed.

Following shows the average MPG of each of the 48 vehicles in the system.

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• Denali HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2014 • 122 Fuel-ups

  Property of callie454

• 13.3 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2017 • 167 Fuel-ups

  Property of SunrayJR

• 13.8 Avg MPG

• GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2017 • 213 Fuel-ups

  Property of mfheinze

• 14.2 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2017 • 170 Fuel-ups

  Property of cybermoser

• 12.5 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2018 • 29 Fuel-ups

  Property of mkfe47

• 17.8 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2017 • 86 Fuel-ups

  Property of suhrich

• 11.8 Avg MPG

• Denali

  2013 GMC Sierra 2500 HD GAS V8
  Added Mar 2013 • 286 Fuel-ups

  Property of ironchair

• 11.0 Avg MPG

• Sierra

  2013 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Aug 2020 • 9 Fuel-ups

  Property of phipps33

• 11.3 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2018 • 90 Fuel-ups

  Property of TTRacecraft

• 13.1 Avg MPG

• State Vehicle

  2013 GMC Sierra 2500 HD WT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Sep 2017 • 144 Fuel-ups

  Property of k28218

• 11.0 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2018 • 70 Fuel-ups

  Property of LT1Burb

• 13.0 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added May 2016 • 320 Fuel-ups

  Property of Cruiser60

• 11.9 Avg MPG

• Dirtymax

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2019 • 37 Fuel-ups

  Property of LittleDannytheDog

• 15.1 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2019 • 95 Fuel-ups

  Property of fuel-track

• 11.2 Avg MPG

• GMC Sierra 2500 HD Work Truck

  2013 GMC Sierra 2500 HD WT 6.0L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Feb 2020 • 29 Fuel-ups

  Property of jasrogers

• 9.6 Avg MPG

• Sierra 2500

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2016 • 40 Fuel-ups

  Property of jasontucker74

• 14.7 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added Aug 2019 • 3 Fuel-ups

  Property of gsteinho

• 31.0 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2020 • 8 Fuel-ups

  Property of zelix

• 17.9 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 18 Fuel-ups

  Property of Morts

• 18.5 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2019 • 34 Fuel-ups

  Property of nosparkplugs

• 13.1 Avg MPG

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