Based on data from 118 vehicles, 13,738 fuel-ups and 3,428,018 miles of driving, the 2006 GMC Sierra 2500 HD gets a combined Avg MPG of 14.24 with a 0.05 MPG margin of error.

Any Engine Type 6.0L V8 GAS (22) 6.6L V8 DIESEL (87) 8.1L V8 GAS (1) V8 DIESEL (3) V8 GAS (3) Any Body Style Sport Utility (1) Extended Cab Pickup (5) Crew Cab Pickup (33) Any Submodel SL (6) WT (6) SLE (30) SLT (69) Other (7)

Below you can see a distribution of the fuel-ups with 474 outliers (3.34%) removed.

Following shows the average MPG of each of the 118 vehicles in the system.

• «
• 1
• 2
• 3
• 4
• 5
• 6
• »

• Ryan's Truck

  2006 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 363 Fuel-ups

  Property of rfoster

• 10.8 Avg MPG

• Truck

  2006 GMC Sierra 2500 HD WT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jul 2015 • 262 Fuel-ups

  Property of gaskippy

• 13.4 Avg MPG

• 04 Yukon XL LBZ

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Sport Utility
  Added Mar 2018 • 295 Fuel-ups

  Property of jamisondonato

• 15.1 Avg MPG

• 2006 GMC Sierra 2500HD

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2018 • 696 Fuel-ups

  Property of tkemo648

• 16.1 Avg MPG

• 2006 GMC Sierra 2500 SLE

  2006 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2016 • 454 Fuel-ups

  Property of 911never4get

• 12.5 Avg MPG

• Truck

  2006 GMC Sierra 2500 HD SL 6.6L V8 DIESEL Standard 6 Speed
  Added Mar 2018 • 196 Fuel-ups

  Property of Bacons2018

• 14.1 Avg MPG

• My Sierra 2500 HD

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2022 • 112 Fuel-ups

  Property of sixsix_tom

• 15.5 Avg MPG

• Tritnee

  2006 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2024 • 25 Fuel-ups

  Property of Lord_Commander

• 15.7 Avg MPG

• GMC

  2006 GMC Sierra 2500 HD SL 6.0L V8 GAS Automatic 4 Speed
  Added Jun 2017 • 183 Fuel-ups

  Property of bumblebeefilms

• 11.0 Avg MPG

• Duramax 2500HD

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2022 • 416 Fuel-ups

  Property of awesomeamerican

• 16.2 Avg MPG

• My Sierra 2500 HD

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 425 Fuel-ups

  Property of PrestonL

• 14.4 Avg MPG

• LBZ

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2021 • 77 Fuel-ups

  Property of rarotary

• 15.2 Avg MPG

• Decal Truck

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jun 2018 • 12 Fuel-ups

  Property of Decalman

• 14.1 Avg MPG

• My Sierra 2500 HD

  2006 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Sep 2022 • 116 Fuel-ups

  Property of firedave654

• 10.2 Avg MPG

• My Sierra 2500 HD

  2006 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Feb 2017 • 360 Fuel-ups

  Property of HomerDMAX

• 16.4 Avg MPG

• DirtyMax

  2006 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added May 2019 • 117 Fuel-ups

  Property of polarisn1

• 15.3 Avg MPG

• Patrick 3.0

  2006 GMC Sierra 2500 HD WT 6.0L V8 GAS Automatic 5 Speed Extended Cab Pickup
  Added Mar 2024 • 7 Fuel-ups

  Property of Aeillustration

• 11.0 Avg MPG

• 2006 Sierra 2500 HD

  2006 GMC Sierra 2500 HD SL 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2021 • 203 Fuel-ups

  Property of dillyboy

• 15.9 Avg MPG

• Red Solo Truck

  2006 GMC Sierra 2500 HD Custom Submodel V8 DIESEL
  Added Jun 2012 • 195 Fuel-ups

  Property of helmet

• 15.8 Avg MPG

• My Sierra 2500 HD

  2006 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added May 2022 • 89 Fuel-ups

  Property of theminthawk

• 11.5 Avg MPG

• «
• 1
• 2
• 3
• 4
• 5
• 6
• »