Based on data from 42 vehicles, 2,761 fuel-ups and 624,617 miles of driving, the 2001 GMC Sierra 2500 HD gets a combined Avg MPG of 10.78 with a 0.14 MPG margin of error.

Any Engine Type 6.0L V8 GAS (13) 6.6L V8 DIESEL (18) 8.1L V8 GAS (6) V8 DIESEL (1) V8 GAS (3) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (8) Crew Cab Pickup (3) Cab & Chassis - Crew Cab (1) Any Submodel SL (3) SLT (10) SLE (25) Other (4)

Below you can see a distribution of the fuel-ups with 40 outliers (1.43%) removed.

Following shows the average MPG of each of the 42 vehicles in the system.

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• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Apr 2018 • 5 Fuel-ups

  Property of rugercp

• 8.6 Avg MPG

• GMC Sierra 2500HD

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 5 Speed
  Added Aug 2018 • 149 Fuel-ups

  Property of dt1977

• 9.7 Avg MPG

• truck

  2001 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic Extended Cab Pickup
  Added Jun 2014 • 262 Fuel-ups

  Property of jcwolf

• 12.1 Avg MPG

• GMC 2500HD

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Sep 2018 • 180 Fuel-ups

  Property of NJFF41

• 14.2 Avg MPG

• Tow GMC

  2001 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed Extended Cab Pickup
  Added Jun 2018 • 16 Fuel-ups

  Property of sunnymidnight

• 9.5 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Standard 6 Speed
  Added Dec 2016 • 54 Fuel-ups

  Property of yatzee

• 16.2 Avg MPG

• Sierra

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Nov 2017 • 65 Fuel-ups

  Property of brendonm

• 12.4 Avg MPG

• Sierra 2500HD

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Oct 2017 • 4 Fuel-ups

  Property of phoney

• 15.6 Avg MPG

• Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added Sep 2017 • 11 Fuel-ups

  Property of The_harland

• 9.6 Avg MPG

• White

  2001 GMC Sierra 2500 HD SL 6.6L V8 DIESEL Manual 6 Speed Extended Cab Pickup
  Added Apr 2019 • 4 Fuel-ups

  Property of thicks01

• 15.4 Avg MPG

• 2500HDDuramax

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Standard Cab Pickup
  Added Sep 2016 • 16 Fuel-ups

  Property of Zeke11

• 16.9 Avg MPG

• Plow Truck

  2001 GMC Sierra 2500 HD GAS V8
  Added Jan 2012 • 217 Fuel-ups

  Property of CTC

• 8.8 Avg MPG

• 2001 GMC

  2001 GMC Sierra 2500 HD SLE
  Added Oct 2017 • 108 Fuel-ups

  Property of Gazzard

• 14.1 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added May 2016 • 15 Fuel-ups

  Property of pwerlineman

• 11.4 Avg MPG

• Sierra

  2001 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Oct 2015 • 6 Fuel-ups

  Property of lgpots

• 28.4 Avg MPG

• My Sierra 2500 HD. Kms

  2001 GMC Sierra 2500 HD SLT 6.6L DIESEL V8 Automatic 5
  Added Jun 2015 • 4 Fuel-ups

  Property of Gratz

• 16.5 Avg MPG

• My Sierra 2500 HD

  2001 GMC Sierra 2500 HD SLE 6.6L DIESEL V8 Automatic 5
  Added Jun 2015 • 4 Fuel-ups

  Property of Gratz

• 18.2 Avg MPG

• The Tow Pig

  2001 GMC Sierra 2500 HD SLE 6.6L DIESEL V8 Automatic 5 Extended Cab Pickup (4 Door)
  Added Mar 2015 • 4 Fuel-ups

  Property of Alexzilla408

• 16.8 Avg MPG

• 2001 GMC

  2001 GMC Sierra 2500 HD GAS V8
  Added Aug 2010 • 92 Fuel-ups

  Property of JoeDiesel

• 10.8 Avg MPG

• Work Truck

  2001 GMC Sierra 2500 HD SLE 6.0L GAS V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Oct 2014 • 5 Fuel-ups

  Property of Quercus

• 11.7 Avg MPG

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