Based on data from 89 vehicles, 1,845 fuel-ups and 661,399 miles of driving, the 2024 GMC Sierra 2500 HD gets a combined Avg MPG of 13.73 with a 0.15 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (77) 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 (17) AT4 (34) Other (1)

Below you can see a distribution of the fuel-ups with 12 outliers (0.65%) removed.

Following shows the average MPG of each of the 89 vehicles in the system.

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• Storm

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2024 • 31 Fuel-ups

  Property of Xaositek

• 14.3 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 14 Fuel-ups

  Property of jessie02

• 12.7 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 20 Fuel-ups

  Property of HSimpC03

• 12.5 Avg MPG

• Sammy 2

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

  Property of bburv

• 15.3 Avg MPG

• Sierra 2500 HD Denali Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2024 • 26 Fuel-ups

  Property of RebelPlumber

• 14.5 Avg MPG

• Heavy D

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 38 Fuel-ups

  Property of MrScubaBHT

• 14.8 Avg MPG

• Batmobile III

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

  Property of Rocinante1

• 15.5 Avg MPG

• Denali

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

  Property of bsample

• 14.1 Avg MPG

• Bolt

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

  Property of dntharrison

• 10.9 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Apr 2024 • 78 Fuel-ups

  Property of mikejstanton

• 11.3 Avg MPG

• 2024 GMC Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS
  Added Oct 2023 • 30 Fuel-ups

  Property of iragobat

• 12.0 Avg MPG

• Lance’s truck

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

  Property of southernu

• 11.4 Avg MPG

• New Denali HD

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

  Property of Sullivan907

• 16.0 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 41 Fuel-ups

  Property of Droth16

• 15.6 Avg MPG

• Mr Truck 2500 HD

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

  Property of Woofie2

• 14.7 Avg MPG

• My Sierra 2500 HD

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

  Property of bryantmuir1

• 11.8 Avg MPG

• Ace

  2024 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2023 • 16 Fuel-ups

  Property of NavyFord

• 16.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Jul 2024 • 9 Fuel-ups

  Property of WilderFatBoy

• 14.0 Avg MPG

• My Sierra 2500 HD

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

  Property of jblythe

• 13.8 Avg MPG

• Gmc2500

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed Standard Cab Pickup
  Added Jan 2024 • 37 Fuel-ups

  Property of bigbones2429

• 11.4 Avg MPG

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