Based on data from 43 vehicles, 1,666 fuel-ups and 510,549 miles of driving, the 2024 GMC Sierra 3500 HD gets a combined Avg MPG of 12.08 with a 0.22 MPG margin of error.

Any Engine Type L5 DIESEL (1) V8 DIESEL (10) Any Body Style Crew Cab Pickup (12) Cab & Chassis - Crew Cab (2) Any Submodel SLE (2) Pro (3) Denali (10) Denali Ultimate (13) AT4 (14) Other (1)

Below you can see a distribution of the fuel-ups with 19 outliers (1.13%) removed.

Following shows the average MPG of each of the 43 vehicles in the system.

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• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD AT4
  Added Mar 2024 • 31 Fuel-ups

  Property of DMaxTRR

• 13.8 Avg MPG

• GMC Sierra 3500 HD

  2024 GMC Sierra 3500 HD AT4
  Added Jun 2023 • 127 Fuel-ups

  Property of petertimmer1

• 16.7 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Pro
  Added Oct 2023 • 117 Fuel-ups

  Property of marlinsmucker

• 12.0 Avg MPG

• AT4

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Nov 2023 • 45 Fuel-ups

  Property of Rustyg23

• 12.8 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Jan 2024 • 64 Fuel-ups

  Property of macdb

• 10.2 Avg MPG

• 2024 GMC 3500 HD AT4

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2023 • 68 Fuel-ups

  Property of AlanWilliams

• 14.3 Avg MPG

• 24 GMC 3500HD

  2024 GMC Sierra 3500 HD SLE V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Nov 2023 • 172 Fuel-ups

  Property of lnikkel

• 6.3 Avg MPG

• Bigger Blue

  2024 GMC Sierra 3500 HD Denali Ultimate V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2023 • 72 Fuel-ups

  Property of Mustanglover3233

• 10.3 Avg MPG

• Ol’ Blue

  2024 GMC Sierra 3500 HD Denali
  Added Mar 2024 • 45 Fuel-ups

  Property of GuBulldogs

• 12.6 Avg MPG

• AT4

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2023 • 65 Fuel-ups

  Property of Dbrown279

• 16.1 Avg MPG

• Ultimo - Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Jun 2024 • 57 Fuel-ups

  Property of Ultimo

• 11.1 Avg MPG

• 24 Ultimate

  2024 GMC Sierra 3500 HD Denali Ultimate V8 DIESEL Automatic Crew Cab Pickup
  Added Nov 2023 • 54 Fuel-ups

  Property of jlawles2

• 14.7 Avg MPG

• LG-Remove

  2024 GMC Sierra 3500 HD Pro
  Added Jul 2024 • 4 Fuel-ups

  Property of gprp

• 11.0 Avg MPG

• My Sierra 3500 HD AT4

  2024 GMC Sierra 3500 HD AT4
  Added Jun 2024 • 13 Fuel-ups

  Property of rzrscubasteve03

• 13.8 Avg MPG

• 2024 AT4

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2023 • 36 Fuel-ups

  Property of DentilGMC

• 12.5 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Aug 2024 • 7 Fuel-ups

  Property of ChasR535d

• 15.9 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Jun 2023 • 135 Fuel-ups

  Property of NM_Bob

• 12.3 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Jul 2024 • 18 Fuel-ups

  Property of TimCheryl

• 12.2 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Jun 2024 • 27 Fuel-ups

  Property of klintdog

• 11.4 Avg MPG

• The Beast

  2024 GMC Sierra 3500 HD AT4
  Added May 2023 • 118 Fuel-ups

  Property of aaronfoster1210

• 13.2 Avg MPG

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