Based on data from 43 vehicles, 1,604 fuel-ups and 488,715 miles of driving, the 2024 GMC Sierra 3500 HD gets a combined Avg MPG of 12.06 with a 0.23 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 (1.17%) removed.

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

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• Big Knuckles

  2024 GMC Sierra 3500 HD AT4
  Added Sep 2023 • 49 Fuel-ups

  Property of xmanayala

• 12.3 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Jun 2024 • 26 Fuel-ups

  Property of klintdog

• 11.4 Avg MPG

• AT4

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Nov 2023 • 44 Fuel-ups

  Property of Rustyg23

• 12.9 Avg MPG

• GMC Sierra 3500 HD

  2024 GMC Sierra 3500 HD AT4
  Added Jun 2023 • 121 Fuel-ups

  Property of petertimmer1

• 16.8 Avg MPG

• 24 GMC 3500HD

  2024 GMC Sierra 3500 HD SLE V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Nov 2023 • 164 Fuel-ups

  Property of lnikkel

• 6.3 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Pro
  Added Oct 2023 • 113 Fuel-ups

  Property of marlinsmucker

• 12.0 Avg MPG

• Sierra 3500 HD Denali Ultimate

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Nov 2024 • 6 Fuel-ups

  Property of Woody321

• 11.2 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD AT4
  Added May 2024 • 30 Fuel-ups

  Property of SoCo

• 11.5 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Jun 2023 • 128 Fuel-ups

  Property of NM_Bob

• 12.2 Avg MPG

• The Beast

  2024 GMC Sierra 3500 HD AT4
  Added May 2023 • 116 Fuel-ups

  Property of aaronfoster1210

• 13.2 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Aug 2023 • 49 Fuel-ups

  Property of exrr35

• 16.0 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD AT4
  Added Mar 2024 • 29 Fuel-ups

  Property of DMaxTRR

• 13.9 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Jan 2024 • 62 Fuel-ups

  Property of macdb

• 10.1 Avg MPG

• My Sierra 3500 HD AT4

  2024 GMC Sierra 3500 HD AT4
  Added Jun 2024 • 11 Fuel-ups

  Property of rzrscubasteve03

• 14.0 Avg MPG

• Ol’ Blue

  2024 GMC Sierra 3500 HD Denali
  Added Mar 2024 • 42 Fuel-ups

  Property of GuBulldogs

• 12.3 Avg MPG

• 2024 GMC 3500

  2024 GMC Sierra 3500 HD SLE Automatic 10 Speed Crew Cab Pickup
  Added Jun 2023 • 61 Fuel-ups

  Property of istbenz

• 9.2 Avg MPG

• 2024 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Dec 2023 • 22 Fuel-ups

  Property of mhab12

• 14.0 Avg MPG

• Mammoth

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Feb 2024 • 48 Fuel-ups

  Property of CStreff

• 17.0 Avg MPG

• My GMC

  2024 GMC Sierra 3500 HD SLT L5 DIESEL Automatic 10 Speed
  Added Sep 2024 • 17 Fuel-ups

  Property of John-Ambrose

• 15.9 Avg MPG

• Bigger Blue

  2024 GMC Sierra 3500 HD Denali Ultimate V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2023 • 71 Fuel-ups

  Property of Mustanglover3233

• 10.2 Avg MPG

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