Based on data from 71 vehicles, 4,165 fuel-ups and 1,275,912 miles of driving, the 2002 GMC Sierra 1500 gets a combined Avg MPG of 14.95 with a 0.09 MPG margin of error.

Any Engine Type 4.3L V6 GAS (6) 4.8L V8 GAS (22) 5.3L V8 FLEX (1) 5.3L V8 GAS (30) 6.0L V8 GAS (2) GAS (1) V8 GAS (7) Any Body Style Standard Cab Pickup (5) Extended Cab Pickup (16) Any Submodel WT (2) Denali (2) SL (4) Base (7) SLT (9) SLE (38) Other (9)

Below you can see a distribution of the fuel-ups with 141 outliers (3.27%) removed.

Following shows the average MPG of each of the 71 vehicles in the system.

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• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.3L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 98 Fuel-ups

  Property of hunter9312

• 12.6 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2022 • 4 Fuel-ups

  Property of OLDBUTGOLD

• 14.0 Avg MPG

• 2002 GMC Sierra

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 278 Fuel-ups

  Property of ccmaydew

• 17.2 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2020 • 85 Fuel-ups

  Property of LBurgett

• 8.6 Avg MPG

• Sierra

  2002 GMC Sierra 1500 4.8L V8 GAS Automatic 4 Speed
  Added Nov 2021 • 10 Fuel-ups

  Property of Cnubelo

• 15.5 Avg MPG

• Harolds Truck

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2010 • 101 Fuel-ups

  Property of fumtu

• 16.2 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2021 • 14 Fuel-ups

  Property of joannksimon

• 10.9 Avg MPG

• Truck

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2018 • 201 Fuel-ups

  Property of freundlt

• 16.2 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2018 • 114 Fuel-ups

  Property of samsseven

• 11.0 Avg MPG

• 2002 GMC SIERRA

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 129 Fuel-ups

  Property of Tommy555

• 5.8 Avg MPG

• 2002 GMC SIERRA

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2023 • 129 Fuel-ups

  Property of Tommy555

• 5.8 Avg MPG

• Big Truck

  2002 GMC Sierra 1500 WT 4.8L V8 GAS Automatic 4 Speed Standard Cab Pickup
  Added Oct 2019 • 18 Fuel-ups

  Property of Superdawg

• 17.1 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed
  Added Apr 2019 • 7 Fuel-ups

  Property of keverin

• 16.0 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SL 4.8L V8 GAS Standard 5 Speed
  Added Oct 2017 • 82 Fuel-ups

  Property of Bugs78

• 18.4 Avg MPG

• Truck

  2002 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Feb 2015 • 37 Fuel-ups

  Property of tpalshadow

• 14.3 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added May 2017 • 77 Fuel-ups

  Property of Average_Dave

• 16.3 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2019 • 4 Fuel-ups

  Property of sbico05

• 11.3 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jun 2018 • 10 Fuel-ups

  Property of streetmod

• 13.3 Avg MPG

• Sierra 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Sep 2016 • 69 Fuel-ups

  Property of rgray3

• 15.8 Avg MPG

• GMC Sierra 1500

  2002 GMC Sierra 1500
  Added Oct 2017 • 25 Fuel-ups

  Property of Pangilinan

• 15.9 Avg MPG

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