Based on data from 92 vehicles, 1,958 fuel-ups and 705,070 miles of driving, the 2024 GMC Sierra 2500 HD gets a combined Avg MPG of 13.75 with a 0.15 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (80) 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 (10) Denali (15) Denali Ultimate (18) AT4 (36) Other (1)

Below you can see a distribution of the fuel-ups with 13 outliers (0.66%) removed.

Following shows the average MPG of each of the 92 vehicles in the system.

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• My 2024 Sierra 2500 HD

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

  Property of jmcnally15

• 19.4 Avg MPG

• Zeus

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2023 • 51 Fuel-ups

  Property of lohertz

• 11.7 Avg MPG

• Dee Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 21 Fuel-ups

  Property of deewhite

• 11.8 Avg MPG

• 2024 Sierra 2500 HD

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

  Property of mike6681

• 14.3 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
  Added Oct 2024 • 6 Fuel-ups

  Property of jrosprey

• 12.4 Avg MPG

• Denali

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2024 • 6 Fuel-ups

  Property of bsample

• 15.0 Avg MPG

• Storm

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

  Property of Xaositek

• 14.3 Avg MPG

• GMC Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 4 Fuel-ups

  Property of Diverb

• 16.6 Avg MPG

• Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 59 Fuel-ups

  Property of CUtiger95

• 17.0 Avg MPG

• 2024 Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Aug 2024 • 23 Fuel-ups

  Property of Jason35

• 12.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 21 Fuel-ups

  Property of HSimpC03

• 12.5 Avg MPG

• GMC 2500 Denali

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

  Property of eclipse5302

• 12.4 Avg MPG

• myGMC

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 60 Fuel-ups

  Property of iPCFX

• 15.1 Avg MPG

• My Sierra 2500 HD

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

  Property of Byoakam28

• 13.2 Avg MPG

• Mr Truck 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2024 • 15 Fuel-ups

  Property of Woofie2

• 14.7 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2024 • 24 Fuel-ups

  Property of dr-hoo

• 11.1 Avg MPG

• Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 21 Fuel-ups

  Property of bikeguru

• 16.6 Avg MPG

• Sierra 2500 HD Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 63 Fuel-ups

  Property of flymhi

• 14.0 Avg MPG

• Sammy 2

  2024 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 21 Fuel-ups

  Property of bburv

• 15.3 Avg MPG

• My Sierra 2500 HD

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

  Property of WilderFatBoy

• 13.8 Avg MPG

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