Based on data from 17 vehicles, 1,098 fuel-ups and 297,193 miles of driving, the 2010 GMC Sierra 2500 HD gets a combined Avg MPG of 14.10 with a 0.24 MPG margin of error.

Any Engine Type 6.0L V8 FLEX (3) 6.0L V8 GAS (3) 6.6L V8 DIESEL (9) V8 DIESEL (1) Any Body Style Extended Cab Pickup (2) Crew Cab Pickup (2) Any Submodel WT (2) SLT (6) SLE (8) Other (1)

Below you can see a distribution of the fuel-ups with 16 outliers (1.44%) removed.

Following shows the average MPG of each of the 17 vehicles in the system.

• My Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Sep 2023 • 21 Fuel-ups

  Property of DMF

• 13.4 Avg MPG

• GMC Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added Jul 2023 • 36 Fuel-ups

  Property of CaptMarion

• 14.1 Avg MPG

• Black Farm Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Dec 2014 • 202 Fuel-ups

  Property of ChasN5ZXN

• 15.1 Avg MPG

• My Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2021 • 174 Fuel-ups

  Property of GilmoreD

• 11.4 Avg MPG

• GMC

  2010 GMC Sierra 2500 HD WT Automatic 6 Speed
  Added Feb 2018 • 13 Fuel-ups

  Property of cbgold

• 34.5 Avg MPG

• My Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2018 • 46 Fuel-ups

  Property of jbradleybradley

• 14.3 Avg MPG

• My Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2018 • 24 Fuel-ups

  Property of EazyyE3G

• 13.0 Avg MPG

• Bernice

  2010 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Feb 2019 • 132 Fuel-ups

  Property of floridaboy

• 12.2 Avg MPG

• GMC 2500HD

  2010 GMC Sierra 2500 HD WT 6.0L V8 GAS Automatic 6 Speed Extended Cab Pickup
  Added Mar 2018 • 6 Fuel-ups

  Property of boblezon

• 12.4 Avg MPG

• GMC Sierra

  2010 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 29 Fuel-ups

  Property of cbowles86

• 15.5 Avg MPG

• 2010 Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2018 • 18 Fuel-ups

  Property of jjacobson

• 11.6 Avg MPG

• 2010 Duramax

  2010 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2018 • 230 Fuel-ups

  Property of wbucholt

• 17.8 Avg MPG

• Tow Haul

  2010 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
  Added Jun 2014 • 103 Fuel-ups

  Property of aldyadanac

• 13.1 Avg MPG

• Duramax

  2010 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2016 • 21 Fuel-ups

  Property of 1500HD

• 18.2 Avg MPG

• My Sierra 2500 HD

  2010 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2016 • 18 Fuel-ups

  Property of jimmy01

• 18.1 Avg MPG

• Clark's truck

  2010 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2016 • 130 Fuel-ups

  Property of cancando

• 13.9 Avg MPG

• My GMC Pickup

  2010 GMC Sierra 2500 HD DIESEL V8
  Added Jul 2011 • 23 Fuel-ups

  Property of Deadheadmatt

• 15.0 Avg MPG