Based on data from 95 vehicles, 2,100 fuel-ups and 754,494 miles of driving, the 2024 GMC Sierra 2500 HD gets a combined Avg MPG of 13.72 with a 0.14 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (83) 6.6L V8 GAS (11) V8 DIESEL (1) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (11) Any Submodel Pro (4) SLE (8) SLT (11) Denali (17) Denali Ultimate (18) AT4 (36) Other (1)

Below you can see a distribution of the fuel-ups with 13 outliers (0.62%) removed.

Following shows the average MPG of each of the 95 vehicles in the system.

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• My Sierra 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2023 • 20 Fuel-ups

  Property of rjswez

• 14.8 Avg MPG

• Storm

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2024 • 37 Fuel-ups

  Property of Xaositek

• 14.3 Avg MPG

• Doc Holliday

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 55 Fuel-ups

  Property of mvprealestate

• 11.7 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2024 • 39 Fuel-ups

  Property of webbman81

• 14.6 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 62 Fuel-ups

  Property of cabraud108

• 11.5 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2024 • 3 Fuel-ups

  Property of slickbrave

• 14.6 Avg MPG

• Ace

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2023 • 18 Fuel-ups

  Property of NavyFord

• 16.2 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Jul 2024 • 13 Fuel-ups

  Property of WilderFatBoy

• 13.3 Avg MPG

• 2500 HD AT4X

  2024 GMC Sierra 2500 HD AT4X AEV V8 DIESEL
  Added Mar 2024 • 19 Fuel-ups

  Property of MYOR91ZV

• 14.0 Avg MPG

• Sammy 2

  2024 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 24 Fuel-ups

  Property of bburv

• 15.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 50 Fuel-ups

  Property of Droth16

• 15.5 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 83 Fuel-ups

  Property of mikejstanton

• 11.2 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
  Added Oct 2024 • 8 Fuel-ups

  Property of jrosprey

• 12.2 Avg MPG

• AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 61 Fuel-ups

  Property of MEMatta

• 16.1 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2024 • 26 Fuel-ups

  Property of dr-hoo

• 11.2 Avg MPG

• Sierra 2500 HD Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 66 Fuel-ups

  Property of flymhi

• 13.9 Avg MPG

• myGMC

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 64 Fuel-ups

  Property of iPCFX

• 15.2 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 29 Fuel-ups

  Property of acgreen73

• 12.6 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 24 Fuel-ups

  Property of daviddennis21

• 13.8 Avg MPG

• New Denali HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 12 Fuel-ups

  Property of Sullivan907

• 15.3 Avg MPG

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