Based on data from 53 vehicles, 3,860 fuel-ups and 1,216,766 miles of driving, the 2013 GMC Sierra 2500 HD gets a combined Avg MPG of 12.53 with a 0.11 MPG margin of error.

Any Engine Type 6.0L V8 CNG (3) 6.0L V8 FLEX (8) 6.0L V8 GAS (2) 6.6L V8 DIESEL (35) DIESEL (1) V8 DIESEL (3) V8 GAS (1) Any Body Style Extended Cab Pickup (6) Crew Cab Pickup (10) Any Submodel WT (4) Denali (12) SLE (16) SLT (16) Other (5)

Below you can see a distribution of the fuel-ups with 76 outliers (1.93%) removed.

Following shows the average MPG of each of the 53 vehicles in the system.

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• Sierra

  2013 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Aug 2020 • 98 Fuel-ups

  Property of phipps33

• 11.4 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2021 • 83 Fuel-ups

  Property of ryno47

• 14.1 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2023 • 7 Fuel-ups

  Property of crbohn

• 16.0 Avg MPG

• Duramax

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2023 • 14 Fuel-ups

  Property of Funnyguy1045

• 14.4 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2021 • 103 Fuel-ups

  Property of olsen22

• 12.1 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2017 • 147 Fuel-ups

  Property of suhrich

• 12.7 Avg MPG

• 2013 Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.0L V8 CNG Automatic 6 Speed
  Added Apr 2022 • 30 Fuel-ups

  Property of Boyleia1

• 12.4 Avg MPG

• GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2021 • 279 Fuel-ups

  Property of mfheinze

• 13.9 Avg MPG

• Denali HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2014 • 156 Fuel-ups

  Property of callie454

• 13.1 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 • 59 Fuel-ups

  Property of jasrogers

• 10.5 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2017 • 257 Fuel-ups

  Property of cybermoser

• 12.4 Avg MPG

• Denali

  2013 GMC Sierra 2500 HD GAS V8
  Added Mar 2013 • 366 Fuel-ups

  Property of ironchair

• 10.6 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2018 • 67 Fuel-ups

  Property of mkfe47

• 17.2 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.0L V8 CNG Automatic 6 Speed
  Added Mar 2021 • 108 Fuel-ups

  Property of yieldplusag

• 15.9 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2017 • 240 Fuel-ups

  Property of SunrayJR

• 14.0 Avg MPG

• State Vehicle

  2013 GMC Sierra 2500 HD WT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Sep 2017 • 213 Fuel-ups

  Property of k28218

• 10.8 Avg MPG

• Dirtymax

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2019 • 107 Fuel-ups

  Property of LittleDannytheDog

• 16.1 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 19 Fuel-ups

  Property of Morts

• 18.5 Avg MPG

• 2013 GMC Sierra 2500HD

  2013 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Nov 2023 • 186 Fuel-ups

  Property of miketoddhart

• 12.8 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

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