Based on data from 43 vehicles, 2,891 fuel-ups and 651,900 miles of driving, the 2001 GMC Sierra 2500 HD gets a combined Avg MPG of 10.71 with a 0.14 MPG margin of error.

Any Engine Type 6.0L V8 GAS (13) 6.6L V8 DIESEL (19) 8.1L V8 GAS (6) V8 DIESEL (1) V8 GAS (3) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (9) Crew Cab Pickup (3) Cab & Chassis - Crew Cab (1) Any Submodel SL (3) SLT (10) SLE (26) Other (4)

Below you can see a distribution of the fuel-ups with 47 outliers (1.60%) removed.

Following shows the average MPG of each of the 43 vehicles in the system.

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• Gray Beast

  2001 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added Jul 2020 • 92 Fuel-ups

  Property of Bscherr

• 9.1 Avg MPG

• 01 Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added May 2022 • 331 Fuel-ups

  Property of JaredPhillips

• 8.4 Avg MPG

• GMC Sierra HD

  2001 GMC Sierra 2500 HD SLT 8.1L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 201 Fuel-ups

  Property of Nonstop2002

• 8.4 Avg MPG

• Smoke Monster

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Manual 6 Speed Extended Cab Pickup
  Added Jan 2025 • 28 Fuel-ups

  Property of ericflanagan

• 18.6 Avg MPG

• Duramax

  2001 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Mar 2017 • 112 Fuel-ups

  Property of benlurch

• 15.9 Avg MPG

• 2001 GMC Sierra CCSB

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed Cab & Chassis - Crew Cab
  Added Mar 2016 • 239 Fuel-ups

  Property of silentbravo

• 10.4 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 5 Speed
  Added Feb 2023 • 9 Fuel-ups

  Property of fritz85

• 12.1 Avg MPG

• GMC Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Nov 2018 • 71 Fuel-ups

  Property of Joeri

• 15.8 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SL 6.0L V8 GAS Automatic 4 Speed
  Added Oct 2022 • 47 Fuel-ups

  Property of keithrieker

• 10.6 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Apr 2023 • 7 Fuel-ups

  Property of Phantom95

• 18.7 Avg MPG

• GMC

  2001 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Jun 2016 • 47 Fuel-ups

  Property of vince6411

• 15.1 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 5 Speed
  Added Jan 2021 • 138 Fuel-ups

  Property of badelf

• 11.8 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLT 8.1L V8 GAS Automatic 5 Speed
  Added Aug 2022 • 3 Fuel-ups

  Property of Snixer

• 8.4 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SL 8.1L V8 GAS Automatic 4 Speed
  Added Oct 2018 • 37 Fuel-ups

  Property of ssucritter

• 11.4 Avg MPG

• Blue Beast

  2001 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Dec 2019 • 60 Fuel-ups

  Property of Joe1981

• 10.6 Avg MPG

• GMC Sierra 2500HD

  2001 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Oct 2017 • 528 Fuel-ups

  Property of hinesge

• 9.3 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Jul 2021 • 7 Fuel-ups

  Property of hayden05

• 11.5 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2020 • 72 Fuel-ups

  Property of landon730

• 12.4 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added May 2020 • 22 Fuel-ups

  Property of RkyMtnElkHunter

• 14.4 Avg MPG

• Leviathan

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Nov 2018 • 27 Fuel-ups

  Property of CelestZ2017

• 15.8 Avg MPG

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