Based on data from 75 vehicles, 5,808 fuel-ups and 1,393,193 miles of driving, the 2005 GMC Sierra 2500 HD gets a combined Avg MPG of 13.10 with a 0.09 MPG margin of error.

Any Engine Type 6.0L V8 CNG (4) 6.0L V8 GAS (15) 6.6L V8 DIESEL (46) GAS (1) V8 DIESEL (3) V8 GAS (2) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (4) Crew Cab Pickup (11) Any Submodel WT (2) Base (4) SLE (24) SLT (38) Other (7)

Below you can see a distribution of the fuel-ups with 103 outliers (1.74%) removed.

Following shows the average MPG of each of the 75 vehicles in the system.

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• 05 Sierra 2500hd

  2005 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jan 2023 • 23 Fuel-ups

  Property of Cooki_Monstre

• 9.3 Avg MPG

• 2005 GMC 2500HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Mar 2017 • 375 Fuel-ups

  Property of Shkbilly

• 14.5 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added May 2022 • 4 Fuel-ups

  Property of mtondi93

• 12.3 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Aug 2022 • 3 Fuel-ups

  Property of skillier795

• 25.7 Avg MPG

• '05 GMC

  2005 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 109 Fuel-ups

  Property of Kamotz

• 9.8 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2022 • 3 Fuel-ups

  Property of ctj71

• 14.7 Avg MPG

• 312 - 2005 GMC Sierra - Boom

  2005 GMC Sierra 2500 HD 6.0L V8 GAS Automatic 4 Speed Standard Cab Pickup
  Added Aug 2019 • 15 Fuel-ups

  Property of gracz

• 9.0 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Oct 2021 • 15 Fuel-ups

  Property of Kevinshinault

• 19.9 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Jul 2021 • 4 Fuel-ups

  Property of oliverb97

• 11.9 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Jun 2020 • 171 Fuel-ups

  Property of 73driver

• 12.2 Avg MPG

• Sierra 2500hd Diesel

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Jun 2020 • 69 Fuel-ups

  Property of Justinleel91

• 16.8 Avg MPG

• Sierra

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Feb 2021 • 4 Fuel-ups

  Property of curgon01

• 13.5 Avg MPG

• GMC Serria

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2016 • 322 Fuel-ups

  Property of RauT

• 13.7 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Jan 2015 • 345 Fuel-ups

  Property of cpk123kli456

• 14.6 Avg MPG

• Red pickup

  2005 GMC Sierra 2500 HD 6.0L V8 CNG Automatic 4 Speed
  Added Apr 2018 • 21 Fuel-ups

  Property of idiehnagrom2017

• 12.0 Avg MPG

• Skippy1

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Dec 2018 • 61 Fuel-ups

  Property of 2005redlly

• 14.5 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Nov 2018 • 95 Fuel-ups

  Property of DWalls

• 11.9 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Nov 2016 • 34 Fuel-ups

  Property of Thechurro

• 10.8 Avg MPG

• My Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Nov 2015 • 230 Fuel-ups

  Property of jonathan4martin

• 14.4 Avg MPG

• Sierra 2500 HD

  2005 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Aug 2017 • 3 Fuel-ups

  Property of johnnk

• 16.3 Avg MPG

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