Based on data from 44 vehicles, 1,751 fuel-ups and 538,138 miles of driving, the 2024 GMC Sierra 3500 HD gets a combined Avg MPG of 12.13 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) AT4 (14) Denali Ultimate (14) Other (1)

Below you can see a distribution of the fuel-ups with 19 outliers (1.07%) removed.

Following shows the average MPG of each of the 44 vehicles in the system.

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• 2024 3500 HD

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

  Property of joh02051

• 16.2 Avg MPG

• 24 Ultimate

  2024 GMC Sierra 3500 HD Denali Ultimate V8 DIESEL Automatic Crew Cab Pickup
  Added Nov 2023 • 55 Fuel-ups

  Property of jlawles2

• 14.7 Avg MPG

• GMC Sierra 3500 HD

  2024 GMC Sierra 3500 HD AT4
  Added Jun 2023 • 130 Fuel-ups

  Property of petertimmer1

• 16.7 Avg MPG

• 2024 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Dec 2023 • 24 Fuel-ups

  Property of mhab12

• 14.1 Avg MPG

• 2024 Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Sep 2024 • 5 Fuel-ups

  Property of cueland

• 10.4 Avg MPG

• My Sierra 3500 HD AT4

  2024 GMC Sierra 3500 HD AT4
  Added Jun 2024 • 14 Fuel-ups

  Property of rzrscubasteve03

• 13.8 Avg MPG

• Big Knuckles

  2024 GMC Sierra 3500 HD AT4
  Added Sep 2023 • 52 Fuel-ups

  Property of xmanayala

• 12.4 Avg MPG

• LG-Remove

  2024 GMC Sierra 3500 HD Pro
  Added Jul 2024 • 5 Fuel-ups

  Property of gprp

• 13.4 Avg MPG

• Mammoth

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Feb 2024 • 52 Fuel-ups

  Property of CStreff

• 16.9 Avg MPG

• 24 GMC 3500HD

  2024 GMC Sierra 3500 HD SLE V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Nov 2023 • 174 Fuel-ups

  Property of lnikkel

• 6.3 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Nov 2023 • 12 Fuel-ups

  Property of slaterx2

• 12.8 Avg MPG

• 2024 GMC Sierra 3500HD

  2024 GMC Sierra 3500 HD Denali Crew Cab Pickup
  Added Aug 2023 • 49 Fuel-ups

  Property of pputney

• 11.0 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 Ultimate
  Added Aug 2023 • 50 Fuel-ups

  Property of exrr35

• 16.1 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

• GMC Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali Ultimate
  Added Aug 2024 • 8 Fuel-ups

  Property of ndsewall

• 14.6 Avg MPG

• My Sierra 3500 HD

  2024 GMC Sierra 3500 HD Denali
  Added Sep 2024 • 8 Fuel-ups

  Property of frugalchuck

• 12.4 Avg MPG

• Long Boi

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2024 • 19 Fuel-ups

  Property of Chrisr91

• 16.3 Avg MPG

• A. Snoler bear 2024 GMC 3500

  2024 GMC Sierra 3500 HD Pro
  Added Aug 2024 • 3 Fuel-ups

  Property of t531

• 13.5 Avg MPG

• GMC 3500

  2024 GMC Sierra 3500 HD AT4 V8 DIESEL Automatic 10 Speed Cab & Chassis - Crew Cab
  Added Mar 2024 • 15 Fuel-ups

  Property of audreez

• 13.6 Avg MPG

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