Based on data from 97 vehicles, 2,344 fuel-ups and 841,554 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 (85) 6.6L V8 GAS (11) V8 DIESEL (1) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (12) Any Submodel Pro (4) SLE (8) SLT (12) Denali (17) Denali Ultimate (19) AT4 (36) Other (1)

Below you can see a distribution of the fuel-ups with 16 outliers (0.68%) removed.

Following shows the average MPG of each of the 97 vehicles in the system.

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• Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2023 • 26 Fuel-ups

  Property of bikeguru

• 16.6 Avg MPG

• My Sierra 2500 HD

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

  Property of Danm1228

• 11.0 Avg MPG

• GMC Sierra 2500 HD

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

  Property of Diverb

• 16.2 Avg MPG

• My Sierra 2500 HD

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

  Property of bpford

• 12.0 Avg MPG

• Denali

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2024 • 11 Fuel-ups

  Property of bsample

• 15.4 Avg MPG

• New Denali HD

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

  Property of Sullivan907

• 15.2 Avg MPG

• Sierra 2500 HD Denali Ultimate

  2024 GMC Sierra 2500 HD Denali Ultimate 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2024 • 36 Fuel-ups

  Property of RebelPlumber

• 15.2 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 33 Fuel-ups

  Property of acgreen73

• 13.2 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed
  Added Jul 2024 • 16 Fuel-ups

  Property of WilderFatBoy

• 12.6 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2024 • 43 Fuel-ups

  Property of webbman81

• 14.5 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
  Added Oct 2024 • 12 Fuel-ups

  Property of jrosprey

• 12.0 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2024 • 29 Fuel-ups

  Property of dr-hoo

• 11.4 Avg MPG

• My 2024 Sierra 2500 HD

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

  Property of jmcnally15

• 19.4 Avg MPG

• Dee Sierra 2500 HD

  2024 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 28 Fuel-ups

  Property of deewhite

• 12.0 Avg MPG

• Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 8 Fuel-ups

  Property of milestoempty

• 16.8 Avg MPG

• Sammy 2

  2024 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2024 • 33 Fuel-ups

  Property of bburv

• 15.7 Avg MPG

• Lance’s truck

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

  Property of southernu

• 11.5 Avg MPG

• My Sierra 2500 HD

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

  Property of lewisbriand

• 15.3 Avg MPG

• My Sierra 2500 HD

  2024 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2024 • 17 Fuel-ups

  Property of wilsonam

• 16.2 Avg MPG

• Gmc2500

  2024 GMC Sierra 2500 HD Pro 6.6L V8 GAS Automatic 10 Speed Standard Cab Pickup
  Added Jan 2024 • 42 Fuel-ups

  Property of bigbones2429

• 11.3 Avg MPG

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