Based on data from 44 vehicles, 2,822 fuel-ups and 988,953 miles of driving, the 2017 GMC Sierra 2500 HD gets a combined Avg MPG of 13.77 with a 0.13 MPG margin of error.

Any Engine Type 6.0L V8 FLEX (6) 6.0L V8 GAS (1) 6.6L V8 DIESEL (37) Any Body Style Crew Cab Pickup (7) Any Submodel Base (1) SLE (5) SLT (10) Denali (28)

Below you can see a distribution of the fuel-ups with 68 outliers (2.35%) removed.

Following shows the average MPG of each of the 44 vehicles in the system.

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• 2017 Denali HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added May 2017 • 79 Fuel-ups

  Property of cwood0425

• 15.1 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Aug 2020 • 12 Fuel-ups

  Property of joshua95

• 14.5 Avg MPG

• Sierra 2500 HD Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2019 • 36 Fuel-ups

  Property of ellisjte

• 14.2 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 243 Fuel-ups

  Property of Paul303

• 15.8 Avg MPG

• GMC 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2018 • 231 Fuel-ups

  Property of Risser

• 13.1 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Nov 2017 • 60 Fuel-ups

  Property of Boor35

• 10.7 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2017 • 81 Fuel-ups

  Property of tacoma7583

• 15.0 Avg MPG

• Sierra Denali 2017

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2019 • 48 Fuel-ups

  Property of jp0590

• 14.7 Avg MPG

• Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 124 Fuel-ups

  Property of jbdoughty01

• 13.8 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Nov 2018 • 210 Fuel-ups

  Property of brianjkmorgan

• 12.8 Avg MPG

• Sierra 2500 HD 2017

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 259 Fuel-ups

  Property of lsfreezn

• 13.0 Avg MPG

• BMax HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2017 • 74 Fuel-ups

  Property of CowboyX5D

• 13.5 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2020 • 12 Fuel-ups

  Property of Garrisonlorenz

• 14.4 Avg MPG

• 2017 SIERRA

  2017 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Aug 2020 • 34 Fuel-ups

  Property of swood2940

• 12.0 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 196 Fuel-ups

  Property of crjones

• 14.3 Avg MPG

• Truck

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Dec 2018 • 78 Fuel-ups

  Property of Jeepmike

• 14.9 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added May 2020 • 10 Fuel-ups

  Property of r61988

• 13.5 Avg MPG

• 2500HD w/Camper

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2018 • 45 Fuel-ups

  Property of ChuckP62

• 11.5 Avg MPG

• 2017 GMC 2500HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2018 • 117 Fuel-ups

  Property of TheLazyC

• 15.5 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2019 • 17 Fuel-ups

  Property of TheDon81

• 15.1 Avg MPG

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