Based on data from 70 vehicles, 1,289 fuel-ups and 471,986 miles of driving, the 2024 GMC Sierra 2500 HD gets a combined Avg MPG of 14.08 with a 0.18 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (70) 6.6L V8 GAS (10) V8 DIESEL (1) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (10) Any Submodel Pro (4) SLE (6) SLT (8) Denali (14) Denali Ultimate (16) AT4 (32) Other (1)

Below you can see a distribution of the fuel-ups with 9 outliers (0.69%) removed.

Following shows the average MPG of each of the 70 vehicles in the system.

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• Batmobile III

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 45 Fuel-ups

  Property of Rocinante1

• 15.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 49 Fuel-ups

  Property of bpford

• 11.6 Avg MPG

• Beast 3.0

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 27 Fuel-ups

  Property of BikingDerek

• 13.3 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 22 Fuel-ups

  Property of rsevn

• 14.6 Avg MPG

• My 2024 Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2024 • 18 Fuel-ups

  Property of jmcnally15

• 19.6 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 36 Fuel-ups

  Property of Droth16

• 15.6 Avg MPG

• GMC Sierra 2500 HD 2024

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 26 Fuel-ups

  Property of markaZ

• 12.1 Avg MPG

• Doc Holliday

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 43 Fuel-ups

  Property of mvprealestate

• 11.1 Avg MPG

• Grey Ghost

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Apr 2024 • 20 Fuel-ups

  Property of wondergeek

• 14.9 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 9 Fuel-ups

  Property of jessie02

• 13.0 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2024 • 8 Fuel-ups

  Property of jblythe

• 13.9 Avg MPG

• Dee Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 9 Fuel-ups

  Property of deewhite

• 11.6 Avg MPG

• myGMC

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 51 Fuel-ups

  Property of iPCFX

• 15.1 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2024 • 19 Fuel-ups

  Property of dr-hoo

• 10.9 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 33 Fuel-ups

  Property of jspeck29

• 15.4 Avg MPG

• Sierra 2500 HD Denali Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2024 • 16 Fuel-ups

  Property of RebelPlumber

• 14.0 Avg MPG

• My Sierra 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2023 • 17 Fuel-ups

  Property of rjswez

• 14.9 Avg MPG

• AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 52 Fuel-ups

  Property of MEMatta

• 16.1 Avg MPG

• Storm

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

  Property of Xaositek

• 14.4 Avg MPG

• Novelty GMC 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2024 • 25 Fuel-ups

  Property of Novelty57

• 13.6 Avg MPG

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