Based on data from 57 vehicles, 5,343 fuel-ups and 1,780,763 miles of driving, the 2017 GMC Sierra 2500 HD gets a combined Avg MPG of 13.37 with a 0.09 MPG margin of error.

Any Engine Type 6.0L V8 FLEX (11) 6.6L V8 DIESEL (46) Any Body Style Sport Utility (1) Crew Cab Pickup (10) Any Submodel Base (3) SLE (5) SLT (13) Denali (36)

Below you can see a distribution of the fuel-ups with 92 outliers (1.69%) removed.

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

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• Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
  Added Jul 2024 • 7 Fuel-ups

  Property of xmtbiker

• 11.1 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 395 Fuel-ups

  Property of crjones

• 13.6 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Nov 2018 • 454 Fuel-ups

  Property of brianjkmorgan

• 12.5 Avg MPG

• My Sierra 2500 HD Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Apr 2021 • 156 Fuel-ups

  Property of Zane62

• 15.3 Avg MPG

• Denali Duramax

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2021 • 89 Fuel-ups

  Property of Neely25

• 16.9 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
  Added Sep 2021 • 52 Fuel-ups

  Property of rbeelee

• 12.2 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Aug 2021 • 137 Fuel-ups

  Property of zap_25

• 11.0 Avg MPG

• Ed's GMC 2500HD Deinali Club Cab

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Apr 2017 • 218 Fuel-ups

  Property of HntngTrout

• 12.4 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2021 • 44 Fuel-ups

  Property of russman27

• 16.1 Avg MPG

• Hellgate Wind

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Sep 2021 • 127 Fuel-ups

  Property of Moynaclan

• 11.2 Avg MPG

• BMax HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Sport Utility
  Added Apr 2017 • 122 Fuel-ups

  Property of CowboyX5D

• 13.5 Avg MPG

• Sierra 2500 HD 2017

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 468 Fuel-ups

  Property of lsfreezn

• 13.6 Avg MPG

• Max

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2021 • 81 Fuel-ups

  Property of harleydude63

• 12.7 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2019 • 56 Fuel-ups

  Property of TheDon81

• 14.0 Avg MPG

• 2017 GMC Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
  Added May 2023 • 55 Fuel-ups

  Property of hockeyguy22

• 12.3 Avg MPG

• 2017 Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2022 • 116 Fuel-ups

  Property of tritz4

• 11.6 Avg MPG

• Sierra 2500 HD Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2019 • 169 Fuel-ups

  Property of ellisjte

• 13.3 Avg MPG

• L5P

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2023 • 30 Fuel-ups

  Property of lbzduramaxvt

• 16.2 Avg MPG

• HD Heather

  2017 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Aug 2017 • 100 Fuel-ups

  Property of CRTurboGuy

• 11.4 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2017 • 125 Fuel-ups

  Property of harper17

• 13.6 Avg MPG

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