Based on data from 55 vehicles, 3,913 fuel-ups and 1,200,721 miles of driving, the 2002 GMC Sierra 2500 HD gets a combined Avg MPG of 12.10 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 (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 39 outliers (0.99%) 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 SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Nov 2017 • 43 Fuel-ups

  Property of letsride4

• 15.5 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 5 Speed
  Added Aug 2020 • 4 Fuel-ups

  Property of elduderino737

• 11.6 Avg MPG

• GMC 2500HD

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed
  Added Aug 2016 • 64 Fuel-ups

  Property of snashbar

• 7.5 Avg MPG

• Sierra

  2002 GMC Sierra 2500 HD SLT 8.1L V8 GAS Automatic 5 Speed
  Added Aug 2016 • 30 Fuel-ups

  Property of benztech

• 9.3 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 4 Speed
  Added Dec 2017 • 94 Fuel-ups

  Property of Slapmaster

• 11.9 Avg MPG

• GMC Sierra

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 4 Speed
  Added Mar 2017 • 206 Fuel-ups

  Property of Pjohnson1848

• 13.9 Avg MPG

• My GMC

  2002 GMC Sierra 2500 HD SL 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Nov 2016 • 516 Fuel-ups

  Property of jaydel1

• 15.0 Avg MPG

• Dura max

  2002 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2016 • 32 Fuel-ups

  Property of kgpowell

• 17.8 Avg MPG

• Truck

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Standard 6 Speed Crew Cab Pickup
  Added Sep 2017 • 51 Fuel-ups

  Property of barefooter_96

• 15.4 Avg MPG

• GMC Truck

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 4 Speed
  Added Mar 2018 • 449 Fuel-ups

  Property of bowtie88

• 8.2 Avg MPG

• Dmax

  2002 GMC Sierra 2500 HD Custom Submodel V8 DIESEL
  Added Jun 2013 • 178 Fuel-ups

  Property of mvfarmboy

• 15.3 Avg MPG

• Beast

  2002 GMC Sierra 2500 HD SLE 8.1L V8 GAS Automatic 5 Speed Extended Cab Pickup
  Added Dec 2017 • 7 Fuel-ups

  Property of johnathanaguilar

• 12.3 Avg MPG

• GMC Sierra

  2002 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 5 Speed
  Added Apr 2017 • 14 Fuel-ups

  Property of NickD

• 14.4 Avg MPG

• Barney

  2002 GMC Sierra 2500 HD 6.0L V8 GAS Automatic 4 Speed Cab & Chassis
  Added Oct 2017 • 35 Fuel-ups

  Property of halon330

• 12.0 Avg MPG

• My Sierra 2500 HD

  2002 GMC Sierra 2500 HD SL 8.1L V8 GAS Automatic 4 Speed
  Added Sep 2017 • 17 Fuel-ups

  Property of boogereatingspastic

• 11.4 Avg MPG

• 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

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