Based on data from 84 vehicles, 9,807 fuel-ups and 2,526,602 miles of driving, the 2008 GMC Sierra 2500 HD gets a combined Avg MPG of 14.28 with a 0.06 MPG margin of error.

Any Engine Type 6.0L V8 GAS (15) 6.6L V8 DIESEL (51) V8 DIESEL (9) V8 GAS (8) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (3) Crew Cab Pickup (20) Extended Crew Cab Pickup (2) Any Submodel WT (7) SLE (28) SLT (32) Other (17)

Below you can see a distribution of the fuel-ups with 460 outliers (4.48%) removed.

Following shows the average MPG of each of the 84 vehicles in the system.

• «
• 1
• 2
• 3
• 4
• 5
• »

• White truck.

  2008 GMC Sierra 2500 HD WT 6.0L V8 GAS Automatic 6 Speed Standard Cab Pickup
  Added Sep 2021 • 3 Fuel-ups

  Property of justynkirchner

• 12.5 Avg MPG

• My Sierra 2500 HD

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2017 • 219 Fuel-ups

  Property of NohrZ71

• 12.5 Avg MPG

• GMC 2500HD

  2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2016 • 202 Fuel-ups

  Property of LawMan02

• 16.1 Avg MPG

• My Sierra 2500 HD

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2020 • 129 Fuel-ups

  Property of Chuck_Yager

• 13.5 Avg MPG

• Monster Gray

  2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Apr 2011 • 367 Fuel-ups

  Property of HarrisQ

• 13.4 Avg MPG

• Truck

  2008 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Jun 2020 • 73 Fuel-ups

  Property of ssm04

• 12.1 Avg MPG

• Chris GMC Sierra 2500

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 519 Fuel-ups

  Property of cshotmix

• 15.5 Avg MPG

• GMC Utility

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
  Added Sep 2017 • 271 Fuel-ups

  Property of Cbrgary

• 12.8 Avg MPG

• 2008 Duramax

  2008 GMC Sierra 2500 HD SLT 6.6L DIESEL V8 Automatic 6 Extended Cab Pickup (4 Door)
  Added Apr 2015 • 944 Fuel-ups

  Property of RobBryce

• 14.3 Avg MPG

• My Sierra 2500 HD

  2008 GMC Sierra 2500 HD WT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2018 • 268 Fuel-ups

  Property of Nawem

• 14.4 Avg MPG

• Sierra

  2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2021 • 20 Fuel-ups

  Property of tibrin

• 12.3 Avg MPG

• 2008 GMC

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Feb 2020 • 75 Fuel-ups

  Property of Maverick99

• 16.6 Avg MPG

• GMC

  2008 GMC Sierra 2500 HD Z71 V8 DIESEL
  Added May 2020 • 41 Fuel-ups

  Property of PearHead

• 13.9 Avg MPG

• GMC Sierra 2500 HD

  2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2018 • 124 Fuel-ups

  Property of TheKings

• 16.3 Avg MPG

• My Sierra 2500 HD

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2017 • 246 Fuel-ups

  Property of VigilanteOne

• 15.2 Avg MPG

• GMD 2500HD

  2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2010 • 277 Fuel-ups

  Property of gsxrah

• 16.4 Avg MPG

• Gmc Sierra 2008

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 36 Fuel-ups

  Property of eeb01

• 14.5 Avg MPG

• 2008 GMC Sierra 2500 HD SLE

  2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jun 2019 • 52 Fuel-ups

  Property of jeff801

• 13.1 Avg MPG

• White P/U

  2008 GMC Sierra 2500 HD WT 6.6L V8 DIESEL
  Added Feb 2019 • 257 Fuel-ups

  Property of rbreininger

• 14.4 Avg MPG

• GMC

  2008 GMC Sierra 2500 HD DIESEL V8
  Added Jan 2014 • 6 Fuel-ups

  Property of RhondaT

• 17.3 Avg MPG

• «
• 1
• 2
• 3
• 4
• 5
• »