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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• Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 54 Fuel-ups

  Property of CUtiger95

• 17.0 Avg MPG

• My Sierra 2500 HD

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

  Property of wilsonam

• 15.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 23 Fuel-ups

  Property of Joshua1120

• 13.3 Avg MPG

• Sammy 2

  2024 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 14 Fuel-ups

  Property of bburv

• 15.3 Avg MPG

• Denali Diesel

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2024 • 16 Fuel-ups

  Property of WinePress

• 13.3 Avg MPG

• Zeus

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2023 • 40 Fuel-ups

  Property of lohertz

• 11.8 Avg MPG

• New Denali HD

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

  Property of Sullivan907

• 17.3 Avg MPG

• Ace

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2023 • 13 Fuel-ups

  Property of NavyFord

• 16.1 Avg MPG

• BIG RED

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jul 2024 • 23 Fuel-ups

  Property of Thekwthemost

• 11.0 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 17 Fuel-ups

  Property of daviddennis21

• 13.6 Avg MPG

• Lance’s truck

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

  Property of southernu

• 12.4 Avg MPG

• Dalton Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 6 Fuel-ups

  Property of deewhite

• 15.7 Avg MPG

• 2024 Sierra Denali 2500 HD

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

  Property of ccc2511

• 15.0 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2024 • 13 Fuel-ups

  Property of Brophy1526

• 15.0 Avg MPG

• Sierra 2500 HD Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2023 • 50 Fuel-ups

  Property of flymhi

• 14.2 Avg MPG

• Heavy D

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 34 Fuel-ups

  Property of MrScubaBHT

• 14.7 Avg MPG

• Mr Truck 2500 HD

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

  Property of Woofie2

• 14.5 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 17 Fuel-ups

  Property of srt_bryan

• 13.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 4 Fuel-ups

  Property of Mazerk

• 15.5 Avg MPG

• Truck GMC Sierra

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 44 Fuel-ups

  Property of MarkY3130

• 13.9 Avg MPG

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