Based on data from 87 vehicles, 7,358 fuel-ups and 1,966,862 miles of driving, the 2007 GMC Sierra 2500 HD gets a combined Avg MPG of 14.26 with a 0.08 MPG margin of error.

Any Engine Type 6.0L V8 GAS (14) 6.6L V8 DIESEL (60) V8 DIESEL (3) V8 GAS (2) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (3) Crew Cab Pickup (18) Cab & Chassis - Extended Cab (1) Any Submodel WT (4) SL (8) SLE (24) SLT (44) Other (7)

Below you can see a distribution of the fuel-ups with 190 outliers (2.52%) removed.

Following shows the average MPG of each of the 87 vehicles in the system.

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• W/T LBZ

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL
  Added Oct 2024 • 38 Fuel-ups

  Property of TheDeafGuy

• 15.8 Avg MPG

• Truck

  2007 GMC Sierra 2500 HD WT 6.0L V8 GAS Automatic 6 Speed Standard Cab Pickup
  Added Oct 2025 • 4 Fuel-ups

  Property of ahenthorn94

• 17.0 Avg MPG

• Dmax

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2016 • 521 Fuel-ups

  Property of KTBHDH

• 12.0 Avg MPG

• 07' GMC

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2025 • 224 Fuel-ups

  Property of paychopongo9

• 16.2 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2017 • 234 Fuel-ups

  Property of DAP1

• 13.7 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Sep 2019 • 319 Fuel-ups

  Property of pheidingsfelder

• 13.4 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2020 • 249 Fuel-ups

  Property of colt_f

• 15.8 Avg MPG

• 2007 GMC 2500HD

  2007 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jul 2024 • 44 Fuel-ups

  Property of MattZewski

• 10.3 Avg MPG

• Truck

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 389 Fuel-ups

  Property of Barney1975

• 15.0 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2024 • 7 Fuel-ups

  Property of TuneMaxx

• 23.2 Avg MPG

• GMC 2500 DMax

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jan 2018 • 222 Fuel-ups

  Property of NDC1

• 14.8 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2024 • 65 Fuel-ups

  Property of Dandersongm

• 15.7 Avg MPG

• 2500HD

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Apr 2025 • 10 Fuel-ups

  Property of BuddyB

• 14.0 Avg MPG

• Truck

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Mar 2017 • 258 Fuel-ups

  Property of ksrake

• 15.6 Avg MPG

• Truck

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2017 • 200 Fuel-ups

  Property of Shenlon

• 14.2 Avg MPG

• GMC Sierra

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2023 • 520 Fuel-ups

  Property of JoggerFogger

• 16.6 Avg MPG

• Plow truck 2500 HD

  2007 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
  Added May 2022 • 30 Fuel-ups

  Property of Funnyguy1045

• 5.9 Avg MPG

• GMC Truck

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2016 • 132 Fuel-ups

  Property of bracken898

• 14.1 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
  Added Apr 2025 • 3 Fuel-ups

  Property of CarlBairos

• 14.7 Avg MPG

• My Sierra 2500 HD

  2007 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2021 • 71 Fuel-ups

  Property of carguy717

• 14.1 Avg MPG

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