Based on data from 60 vehicles, 4,156 fuel-ups and 1,264,235 miles of driving, the 2002 GMC Sierra 2500 HD gets a combined Avg MPG of 12.13 with a 0.14 MPG margin of error.

Any Engine Type 6.0L V8 BI-FUEL (2) 6.0L V8 GAS (15) 6.6L V8 DIESEL (25) 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) SLE (22) SLT (24) Other (7)

Below you can see a distribution of the fuel-ups with 39 outliers (0.93%) removed.

Following shows the average MPG of each of the 60 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 Nov 2017 • 5 Fuel-ups

  Property of JBall217

• 13.7 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 4 Speed
  Added Mar 2017 • 3 Fuel-ups

  Property of caitlinnichols18

• 15.7 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 5 Speed
  Added Jun 2017 • 4 Fuel-ups

  Property of dillpickellel

• 13.0 Avg MPG

• Big Red

  2002 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 29 Fuel-ups

  Property of buckywon

• 11.8 Avg MPG

• Big Ed

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed Cab & Chassis - Extended Cab
  Added Jun 2016 • 17 Fuel-ups

  Property of Jondaytona

• 13.7 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 5 Speed
  Added Oct 2016 • 3 Fuel-ups

  Property of frickn

• 9.4 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Feb 2016 • 11 Fuel-ups

  Property of khansen_z28

• 15.6 Avg MPG

• 2002 GMC

  2002 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 5 Speed Crew Cab Pickup
  Added Dec 2017 • 57 Fuel-ups

  Property of mekgp

• 10.3 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Nov 2015 • 14 Fuel-ups

  Property of lehdood

• 14.2 Avg MPG

• GMC

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Apr 2021 • 108 Fuel-ups

  Property of mcycjim

• 14.6 Avg MPG

• Big Red Truck

  2002 GMC Sierra 2500 HD SLT 6L GAS V8 Automatic 4
  Added Apr 2015 • 11 Fuel-ups

  Property of tickerh

• 12.3 Avg MPG

• M.A.W. black 4x4

  2002 GMC Sierra 2500 HD SLT 8.1L V8 GAS Automatic 5 Speed
  Added Dec 2016 • 185 Fuel-ups

  Property of modernbeat

• 10.2 Avg MPG

• Sam

  2002 GMC Sierra 2500 HD DIESEL V8
  Added Jan 2014 • 29 Fuel-ups

  Property of 9mmkungfu

• 12.2 Avg MPG

• Elsa

  2002 GMC Sierra 2500 HD GAS V8
  Added Apr 2014 • 17 Fuel-ups

  Property of zombeats

• 13.0 Avg MPG

• 02 Sierra

  2002 GMC Sierra 2500 HD 6.0L GAS V8 Automatic 5 Extended Cab Pickup (4 Door)
  Added Oct 2014 • 4 Fuel-ups

  Property of 87Corolla

• 13.5 Avg MPG

• 2500HD

  2002 GMC Sierra 2500 HD GAS V8
  Added May 2014 • 6 Fuel-ups

  Property of cossalter18

• 9.7 Avg MPG

• Precious

  2002 GMC Sierra 2500 HD GAS V8
  Added Mar 2014 • 10 Fuel-ups

  Property of CSL

• 11.6 Avg MPG

• Jimmy

  2002 GMC Sierra 2500 HD DIESEL V8
  Added Jun 2013 • 44 Fuel-ups

  Property of yogaboy

• 12.7 Avg MPG

• White GMC Truck

  2002 GMC Sierra 2500 HD GAS V8
  Added Sep 2009 • 9 Fuel-ups

  Property of RVThere

• 9.9 Avg MPG

• 2002 Duramax

  2002 GMC Sierra 2500 HD SLE 6.6L DIESEL V8 Automatic 5 Extended Cab Pickup (4 Door)
  Added Apr 2015 • 439 Fuel-ups

  Property of RobBryce

• 15.7 Avg MPG

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