Based on data from 60 vehicles, 4,546 fuel-ups and 1,536,014 miles of driving, the 2011 GMC Sierra 2500 HD gets a combined Avg MPG of 13.52 with a 0.09 MPG margin of error.

Any Engine Type 6.0L V8 FLEX (7) 6.0L V8 GAS (4) 6.6L V8 DIESEL (36) GAS (1) V8 DIESEL (8) V8 GAS (4) Any Body Style Standard Cab Pickup (2) Extended Cab Pickup (3) Crew Cab Pickup (14) Any Submodel WT (3) SLE (11) SLT (16) Denali (17) Other (13)

Below you can see a distribution of the fuel-ups with 194 outliers (4.09%) removed.

Following shows the average MPG of each of the 60 vehicles in the system.

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• GMC

  2011 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Feb 2021 • 200 Fuel-ups

  Property of reo

• 14.3 Avg MPG

• Bob's GMC Denali

  2011 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2021 • 223 Fuel-ups

  Property of Uvgotbob

• 13.1 Avg MPG

• Truck

  2011 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Apr 2018 • 368 Fuel-ups

  Property of Go2Guy81

• 14.3 Avg MPG

• Sierra 2500 HD

  2011 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
  Added May 2023 • 104 Fuel-ups

  Property of Fj3442

• 13.0 Avg MPG

• Gmc

  2011 GMC Sierra 2500 HD WT 6.0L V8 FLEX Automatic 6 Speed Standard Cab Pickup
  Added Jan 2025 • 120 Fuel-ups

  Property of pmcgray

• 11.2 Avg MPG

• Baby Blue

  2011 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
  Added Aug 2019 • 89 Fuel-ups

  Property of jlewis

• 13.1 Avg MPG

• LML Denali

  2011 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2022 • 53 Fuel-ups

  Property of jwmontoya

• 14.8 Avg MPG

• 11 GMC Heavy D

  2011 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2019 • 40 Fuel-ups

  Property of tbspangler

• 11.7 Avg MPG

• Black Beauty

  2011 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2023 • 27 Fuel-ups

  Property of moyerdm

• 9.9 Avg MPG

• My Sierra 2500 HD

  2011 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2021 • 258 Fuel-ups

  Property of CorgiLover23

• 13.3 Avg MPG

• GMC Sierra 2500 HD

  2011 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
  Added Jun 2023 • 22 Fuel-ups

  Property of alphaimpressions

• 11.5 Avg MPG

• Silver Fox

  2011 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Oct 2017 • 78 Fuel-ups

  Property of csiler

• 9.5 Avg MPG

• The Nali

  2011 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2020 • 18 Fuel-ups

  Property of Wyatt4114

• 12.3 Avg MPG

• My Sierra 2500 HD

  2011 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2023 • 19 Fuel-ups

  Property of 05rioS2K

• 8.3 Avg MPG

• 2011 Sierra 2500 HD

  2011 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2021 • 87 Fuel-ups

  Property of GussyP

• 16.4 Avg MPG

• 2011 Sierra 2500 HD

  2011 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2018 • 125 Fuel-ups

  Property of Sandhopper

• 14.5 Avg MPG

• My Sierra 2500 HD

  2011 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added Jun 2022 • 14 Fuel-ups

  Property of Karlita

• 12.6 Avg MPG

• Sierra

  2011 GMC Sierra 2500 HD DIESEL V8
  Added Sep 2011 • 291 Fuel-ups

  Property of SpecMiata23

• 14.7 Avg MPG

• 2011 Duramax

  2011 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2021 • 172 Fuel-ups

  Property of JarrettR

• 10.7 Avg MPG

• My Sierra 2500 HD

  2011 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Nov 2021 • 15 Fuel-ups

  Property of ABond10

• 13.4 Avg MPG

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