Based on data from 95 vehicles, 2,132 fuel-ups and 765,037 miles of driving, the 2024 GMC Sierra 2500 HD gets a combined Avg MPG of 13.72 with a 0.14 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (83) 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 (11) Denali (17) Denali Ultimate (18) AT4 (36) Other (1)

Below you can see a distribution of the fuel-ups with 13 outliers (0.61%) removed.

Following shows the average MPG of each of the 95 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 Aug 2024 • 17 Fuel-ups

  Property of jessie02

• 12.7 Avg MPG

• AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 62 Fuel-ups

  Property of MEMatta

• 16.0 Avg MPG

• Sierra 2500 HD

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

  Property of vitman7

• 13.6 Avg MPG

• 2024 GMC Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS
  Added Oct 2023 • 33 Fuel-ups

  Property of iragobat

• 11.9 Avg MPG

• Big Black

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2023 • 42 Fuel-ups

  Property of Fireman_JB

• 16.5 Avg MPG

• BIG RED

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jul 2024 • 66 Fuel-ups

  Property of Thekwthemost

• 10.7 Avg MPG

• Dalton Sierra 2500 HD

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

  Property of deewhite

• 15.6 Avg MPG

• Zeus

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2023 • 53 Fuel-ups

  Property of lohertz

• 11.7 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 sikk50

• 13.4 Avg MPG

• Lance’s truck

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 11 Fuel-ups

  Property of southernu

• 11.3 Avg MPG

• Sammy 2

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

  Property of bburv

• 15.6 Avg MPG

• Dee Sierra 2500 HD

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

  Property of deewhite

• 11.8 Avg MPG

• My Sierra 2500 HD

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

  Property of lewisbriand

• 15.1 Avg MPG

• Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 23 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 • 84 Fuel-ups

  Property of mikejstanton

• 11.2 Avg MPG

• Sierra 2500 HD Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 67 Fuel-ups

  Property of flymhi

• 13.9 Avg MPG

• Heavy D

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 42 Fuel-ups

  Property of MrScubaBHT

• 14.8 Avg MPG

• Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 7 Fuel-ups

  Property of milestoempty

• 16.9 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2024 • 15 Fuel-ups

  Property of wilsonam

• 16.3 Avg MPG

• My Sierra 2500 HD

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

  Property of Droth16

• 15.5 Avg MPG

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