Based on data from 57 vehicles, 4,201 fuel-ups and 1,308,600 miles of driving, the 2013 GMC Sierra 2500 HD gets a combined Avg MPG of 12.51 with a 0.11 MPG margin of error.

Any Engine Type 6.0L V8 CNG (3) 6.0L V8 FLEX (10) 6.0L V8 GAS (2) 6.6L V8 DIESEL (36) DIESEL (1) V8 DIESEL (3) V8 GAS (1) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (6) Crew Cab Pickup (11) Any Submodel WT (5) Denali (12) SLE (17) SLT (18) Other (5)

Below you can see a distribution of the fuel-ups with 84 outliers (1.96%) removed.

Following shows the average MPG of each of the 57 vehicles in the system.

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• Big Poppa’s Truck

  2013 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Jun 2024 • 45 Fuel-ups

  Property of SiglerRides

• 11.3 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 • 226 Fuel-ups

  Property of miketoddhart

• 12.2 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2021 • 148 Fuel-ups

  Property of olsen22

• 11.7 Avg MPG

• 2013 GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2017 • 297 Fuel-ups

  Property of cybermoser

• 12.4 Avg MPG

• Sierra

  2013 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Aug 2020 • 154 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 • 102 Fuel-ups

  Property of ryno47

• 13.9 Avg MPG

• Denali HD

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2014 • 172 Fuel-ups

  Property of callie454

• 13.0 Avg MPG

• GMC

  2013 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2021 • 305 Fuel-ups

  Property of mfheinze

• 13.9 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2017 • 166 Fuel-ups

  Property of suhrich

• 12.9 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.0L V8 CNG Automatic 6 Speed
  Added Mar 2021 • 143 Fuel-ups

  Property of yieldplusag

• 15.5 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 • 70 Fuel-ups

  Property of jasrogers

• 10.6 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2017 • 261 Fuel-ups

  Property of SunrayJR

• 13.9 Avg MPG

• Duramax

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2023 • 33 Fuel-ups

  Property of Funnyguy1045

• 14.2 Avg MPG

• 2013 Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.0L V8 CNG Automatic 6 Speed
  Added Apr 2022 • 39 Fuel-ups

  Property of Boyleia1

• 12.7 Avg MPG

• Dirtymax

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2019 • 120 Fuel-ups

  Property of LittleDannytheDog

• 16.5 Avg MPG

• My Sierra 2500 HD

  2013 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2023 • 15 Fuel-ups

  Property of crbohn

• 20.8 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

• 2013 2500 HD

  2013 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2018 • 69 Fuel-ups

  Property of mkfe47

• 17.1 Avg MPG

• Denali

  2013 GMC Sierra 2500 HD GAS V8
  Added Mar 2013 • 368 Fuel-ups

  Property of ironchair

• 10.6 Avg MPG

• Sierra

  2013 GMC Sierra 2500 HD WT 6.0L V8 FLEX Automatic 6 Speed Standard Cab Pickup
  Added Jan 2025 • 7 Fuel-ups

  Property of orderfromchaos

• 26.4 Avg MPG

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