Based on data from 57 vehicles, 5,395 fuel-ups and 1,796,432 miles of driving, the 2017 GMC Sierra 2500 HD gets a combined Avg MPG of 13.36 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 93 outliers (1.69%) removed.

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

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• My Sierra 2500 HD Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Apr 2021 • 162 Fuel-ups

  Property of Zane62

• 15.3 Avg MPG

• 2017 Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2022 • 117 Fuel-ups

  Property of tritz4

• 11.6 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
  Added Sep 2021 • 53 Fuel-ups

  Property of rbeelee

• 12.3 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Nov 2018 • 460 Fuel-ups

  Property of brianjkmorgan

• 12.5 Avg MPG

• Sierra 2500 HD Denali

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2019 • 174 Fuel-ups

  Property of ellisjte

• 13.3 Avg MPG

• Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
  Added Jul 2024 • 8 Fuel-ups

  Property of xmtbiker

• 11.0 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 516 Fuel-ups

  Property of Paul303

• 15.2 Avg MPG

• Denali Duramax

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2021 • 92 Fuel-ups

  Property of Neely25

• 16.8 Avg MPG

• Sierra 2500 HD 2017

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 472 Fuel-ups

  Property of lsfreezn

• 13.6 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 • 222 Fuel-ups

  Property of HntngTrout

• 12.5 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 • 126 Fuel-ups

  Property of harper17

• 13.5 Avg MPG

• 2017 GMC Sierra 2500 HD

  2017 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
  Added May 2023 • 56 Fuel-ups

  Property of hockeyguy22

• 12.3 Avg MPG

• L5P

  2017 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2023 • 35 Fuel-ups

  Property of lbzduramaxvt

• 16.1 Avg MPG

• Denali HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2024 • 37 Fuel-ups

  Property of eddieandlinzi

• 14.9 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Aug 2021 • 139 Fuel-ups

  Property of zap_25

• 11.0 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 399 Fuel-ups

  Property of crjones

• 13.6 Avg MPG

• Hellgate Wind

  2017 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
  Added Sep 2021 • 128 Fuel-ups

  Property of Moynaclan

• 11.3 Avg MPG

• My Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2020 • 38 Fuel-ups

  Property of Garrisonlorenz

• 14.4 Avg MPG

• Sierra Denali 2017

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2019 • 108 Fuel-ups

  Property of jp0590

• 14.1 Avg MPG

• 2017 Sierra 2500 HD

  2017 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2019 • 57 Fuel-ups

  Property of TheDon81

• 14.0 Avg MPG

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