Based on data from 55 vehicles, 3,911 fuel-ups and 1,201,876 miles of driving, the 2002 GMC Sierra 2500 HD gets a combined Avg MPG of 12.12 with a 0.15 MPG margin of error.

Any Engine Type 6.0L V8 BI-FUEL (1) 6.0L V8 GAS (15) 6.6L V8 DIESEL (21) 8.1L V8 GAS (11) V8 DIESEL (3) V8 GAS (4) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (5) Crew Cab Pickup (6) Cab & Chassis (1) Cab & Chassis - Extended Cab (1) Any Submodel Base (3) SL (4) SLT (20) SLE (21) Other (7)

Below you can see a distribution of the fuel-ups with 27 outliers (0.69%) removed.

Following shows the average MPG of each of the 55 vehicles in the system.

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• Truck

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Nov 2021 • 29 Fuel-ups

  Property of Snega

• 13.5 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Jun 2021 • 78 Fuel-ups

  Property of C013

• 12.9 Avg MPG

• My Sierra 2500 HD SLE

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 34 Fuel-ups

  Property of venieta

• 9.5 Avg MPG

• GMC 2500HD

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic Crew Cab Pickup
  Added Dec 2020 • 251 Fuel-ups

  Property of JoeFon

• 17.5 Avg MPG

• 02 Sierra

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed Extended Cab Pickup
  Added Mar 2018 • 142 Fuel-ups

  Property of brainpause

• 9.0 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Aug 2022 • 17 Fuel-ups

  Property of bradylsw

• 17.2 Avg MPG

• GMC Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Aug 2020 • 93 Fuel-ups

  Property of Akkid

• 14.7 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Jun 2014 • 7 Fuel-ups

  Property of BowtieBandit

• 15.8 Avg MPG

• GMC Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2018 • 57 Fuel-ups

  Property of LWorr

• 14.3 Avg MPG

• 2002 GMC Sierra

  2002 GMC Sierra 2500 HD SLT 8.1L V8 GAS Automatic 5 Speed
  Added Aug 2016 • 6 Fuel-ups

  Property of 3black

• 36.8 Avg MPG

• GMC

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 148 Fuel-ups

  Property of BobcShaw

• 8.9 Avg MPG

• GMC Sierra

  2002 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Sep 2018 • 37 Fuel-ups

  Property of bujigchin

• 10.0 Avg MPG

• Truck

  2002 GMC Sierra 2500 HD 6.0L V8 GAS Automatic 4 Speed
  Added Aug 2018 • 144 Fuel-ups

  Property of rpannell

• 10.4 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SL 6.0L V8 BI-FUEL Automatic 4 Speed
  Added May 2022 • 3 Fuel-ups

  Property of bbettinmc

• 13.7 Avg MPG

• RedBaron

  2002 GMC Sierra 2500 HD SLE 6.0L V8 GAS Manual 5 Speed Standard Cab Pickup
  Added Mar 2020 • 10 Fuel-ups

  Property of StoneByStone

• 14.1 Avg MPG

• 2002 Diesel

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Dec 2016 • 58 Fuel-ups

  Property of doots

• 14.2 Avg MPG

• Smoky

  2002 GMC Sierra 2500 HD SL 6.0L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jan 2019 • 239 Fuel-ups

  Property of jamesrmac

• 11.3 Avg MPG

• GMC

  2002 GMC Sierra 2500 HD SLT 6.0L V8 GAS
  Added Dec 2020 • 4 Fuel-ups

  Property of creedo

• 9.5 Avg MPG

• Truck

  2002 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Aug 2018 • 260 Fuel-ups

  Property of TGriffi1

• 12.6 Avg MPG

• Large Marge

  2002 GMC Sierra 2500 HD SLT 8.1L V8 GAS Automatic 5 Speed
  Added Sep 2020 • 5 Fuel-ups

  Property of SurferChicUSA

• 10.6 Avg MPG

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