Based on data from 94 vehicles, 2,071 fuel-ups and 743,177 miles of driving, the 2024 GMC Sierra 2500 HD gets a combined Avg MPG of 13.72 with a 0.15 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (82) 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 (17) Denali Ultimate (18) AT4 (36) Other (1)

Below you can see a distribution of the fuel-ups with 13 outliers (0.62%) removed.

Following shows the average MPG of each of the 94 vehicles in the system.

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• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 47 Fuel-ups

  Property of Droth16

• 15.6 Avg MPG

• My Denali

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2024 • 3 Fuel-ups

  Property of bchoney

• 11.5 Avg MPG

• GMC Sierra 2500 HD 2024

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 31 Fuel-ups

  Property of markaZ

• 12.3 Avg MPG

• Sierra 2500 HD

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

  Property of bikeguru

• 16.5 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 81 Fuel-ups

  Property of mikejstanton

• 11.2 Avg MPG

• 2024 Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Aug 2024 • 24 Fuel-ups

  Property of Jason35

• 12.4 Avg MPG

• Gmc2500

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed Standard Cab Pickup
  Added Jan 2024 • 39 Fuel-ups

  Property of bigbones2429

• 11.5 Avg MPG

• Sierra 2500 HD Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 65 Fuel-ups

  Property of flymhi

• 13.9 Avg MPG

• Novelty GMC 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2024 • 32 Fuel-ups

  Property of Novelty57

• 13.9 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 • 46 Fuel-ups

  Property of eclipse5302

• 12.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
  Added Oct 2024 • 7 Fuel-ups

  Property of jrosprey

• 12.3 Avg MPG

• Bolt

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2024 • 37 Fuel-ups

  Property of dntharrison

• 11.0 Avg MPG

• Beast 3.0

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 46 Fuel-ups

  Property of BikingDerek

• 12.7 Avg MPG

• GMC 2500 HD Sierra AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2022 • 27 Fuel-ups

  Property of bradylsw

• 14.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 61 Fuel-ups

  Property of cabraud108

• 11.5 Avg MPG

• My Sierra 2500 HD

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

  Property of dr-hoo

• 11.1 Avg MPG

• Ace

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2023 • 17 Fuel-ups

  Property of NavyFord

• 16.2 Avg MPG

• 2024 GMC Sierra

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Sep 2023 • 24 Fuel-ups

  Property of stevenlpennington

• 13.8 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 7 Fuel-ups

  Property of Redat42024

• 13.9 Avg MPG

• GMC Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 5 Fuel-ups

  Property of Diverb

• 17.2 Avg MPG

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