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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• 2024 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 6 Fuel-ups

  Property of mkfe47

• 15.6 Avg MPG

• My Sierra 2500 HD

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

  Property of Guerra29

• 15.7 Avg MPG

• Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 6 Fuel-ups

  Property of milestoempty

• 17.0 Avg MPG

• Denali Diesel

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2024 • 20 Fuel-ups

  Property of WinePress

• 13.8 Avg MPG

• My Sierra 2500 HD

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

  Property of wilsonam

• 16.5 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2024 • 3 Fuel-ups

  Property of lewisbriand

• 15.9 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

• 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

• 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

• My Sierra 2500 HD Denali Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 19 Fuel-ups

  Property of fox454

• 13.6 Avg MPG

• My Sierra 2500 HD

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

  Property of cmmsweet

• 13.3 Avg MPG

• My Sierra 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2023 • 19 Fuel-ups

  Property of rjswez

• 14.9 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 24 Fuel-ups

  Property of Joshua1120

• 13.3 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 10 Speed
  Added Sep 2024 • 15 Fuel-ups

  Property of mikekuhnwv

• 13.1 Avg MPG

• My Sierra 2500 HD

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

  Property of bpford

• 11.8 Avg MPG

• Sierra 2500 HD

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

  Property of woods1

• 15.5 Avg MPG

• 2024 GMC 2500HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Feb 2024 • 7 Fuel-ups

  Property of gsxrah

• 15.4 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 18 Fuel-ups

  Property of srt_bryan

• 13.3 Avg MPG

• My Sierra 2500 HD

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

  Property of rsevn

• 14.6 Avg MPG

• DEF - 2024 GMC Sierra 2500 HD AT4

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Aug 2024 • 3 Fuel-ups

  Property of compsciguy1217

• 633.5 Avg MPG

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