Based on data from 52 vehicles, 3,075 fuel-ups and 980,206 miles of driving, the 2013 GMC Sierra 2500 HD gets a combined Avg MPG of 12.38 with a 0.12 MPG margin of error.

Any Engine Type 6.0L V8 CNG (2) 6.0L V8 FLEX (7) 6.0L V8 GAS (3) 6.6L V8 DIESEL (35) DIESEL (1) V8 DIESEL (3) V8 GAS (1) Any Body Style Extended Cab Pickup (6) Crew Cab Pickup (9) Any Submodel WT (4) SLT (12) Denali (13) SLE (18) Other (5)

Below you can see a distribution of the fuel-ups with 122 outliers (3.82%) removed.

Following shows the average MPG of each of the 52 vehicles in the system.

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• 2500

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jul 2015 • 96 Fuel-ups

  Property of bkfd062

• 13.8 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2018 • 117 Fuel-ups

  Property of TTRacecraft

• 13.1 Avg MPG

• Denali

  2013 GMC Sierra 2500 HD GAS V8
  Added Mar 2013 • 311 Fuel-ups

  Property of ironchair

• 10.8 Avg MPG

• State Vehicle

  2013 GMC Sierra 2500 HD WT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Sep 2017 • 174 Fuel-ups

  Property of k28218

• 10.7 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2021 • 21 Fuel-ups

  Property of ryno47

• 13.7 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added May 2021 • 6 Fuel-ups

  Property of Reeves89

• 13.4 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2017 • 177 Fuel-ups

  Property of SunrayJR

• 13.8 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.0L V8 CNG Automatic 6 Speed
  Added Mar 2021 • 31 Fuel-ups

  Property of yieldplusag

• 16.8 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2017 • 201 Fuel-ups

  Property of cybermoser

• 12.4 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2021 • 4 Fuel-ups

  Property of olsen22

• 12.3 Avg MPG

• Sierra

  2013 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Aug 2020 • 29 Fuel-ups

  Property of phipps33

• 11.4 Avg MPG

• Dirtymax

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2019 • 48 Fuel-ups

  Property of LittleDannytheDog

• 15.4 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 • 40 Fuel-ups

  Property of jasrogers

• 10.0 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2018 • 40 Fuel-ups

  Property of mkfe47

• 17.5 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

• GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2021 • 227 Fuel-ups

  Property of mfheinze

• 14.1 Avg MPG

• Denali HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2014 • 129 Fuel-ups

  Property of callie454

• 13.2 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2017 • 95 Fuel-ups

  Property of suhrich

• 11.9 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2018 • 78 Fuel-ups

  Property of LT1Burb

• 13.5 Avg MPG

• Farm

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2021 • 4 Fuel-ups

  Property of miller2e05

• 14.8 Avg MPG

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