Based on data from 61 vehicles, 4,266 fuel-ups and 1,291,068 miles of driving, the 2002 GMC Sierra 2500 HD gets a combined Avg MPG of 12.12 with a 0.14 MPG margin of error.

Any Engine Type 6.0L V8 BI-FUEL (1) 6.0L V8 GAS (15) 6.6L V8 DIESEL (26) 8.1L V8 GAS (12) 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) SLE (22) SLT (25) Other (7)

Below you can see a distribution of the fuel-ups with 41 outliers (0.95%) removed.

Following shows the average MPG of each of the 61 vehicles in the system.

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• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2024 • 12 Fuel-ups

  Property of BoostedM

• 16.3 Avg MPG

• My Sierra 2500 HD SLE

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 46 Fuel-ups

  Property of venieta

• 10.0 Avg MPG

• GMC Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2018 • 84 Fuel-ups

  Property of LWorr

• 14.8 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 • 25 Fuel-ups

  Property of BowtieBandit

• 16.5 Avg MPG

• 02 Sierra

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed Extended Cab Pickup
  Added Mar 2018 • 204 Fuel-ups

  Property of brainpause

• 9.1 Avg MPG

• GMC

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 202 Fuel-ups

  Property of BobcShaw

• 8.8 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 4 Speed
  Added Jun 2023 • 21 Fuel-ups

  Property of tycoon7

• 16.7 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Jun 2023 • 19 Fuel-ups

  Property of Forrest

• 13.8 Avg MPG

• Truck

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Nov 2021 • 52 Fuel-ups

  Property of Snega

• 13.9 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 • 158 Fuel-ups

  Property of Akkid

• 14.4 Avg MPG

• Truck

  2002 GMC Sierra 2500 HD 6.0L V8 GAS Automatic 4 Speed
  Added Aug 2018 • 149 Fuel-ups

  Property of rpannell

• 10.3 Avg MPG

• GMC Sierra

  2002 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Sep 2018 • 50 Fuel-ups

  Property of bujigchin

• 10.2 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SL 8.1L V8 GAS Automatic 4 Speed
  Added Jun 2024 • 4 Fuel-ups

  Property of RogueTrucking

• 16.5 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added May 2024 • 3 Fuel-ups

  Property of cpwins32

• 17.3 Avg MPG

• Rocket Senior

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 4 Speed
  Added Jul 2023 • 56 Fuel-ups

  Property of legacy1

• 15.3 Avg MPG

• GMC 2500HD

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic Crew Cab Pickup
  Added Dec 2020 • 267 Fuel-ups

  Property of JoeFon

• 17.6 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.0L V8 BI-FUEL Automatic 4 Speed
  Added May 2023 • 13 Fuel-ups

  Property of tATu

• 11.4 Avg MPG

• Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Mar 2023 • 5 Fuel-ups

  Property of txdoc

• 12.4 Avg MPG

• 2002 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

• 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

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