Based on data from 72 vehicles, 4,015 fuel-ups and 1,226,223 miles of driving, the 2002 GMC Sierra 1500 gets a combined Avg MPG of 14.82 with a 0.09 MPG margin of error.

Any Engine Type 4.3L V6 GAS (6) 4.8L V8 GAS (23) 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 (10) SLE (38) Other (9)

Below you can see a distribution of the fuel-ups with 139 outliers (3.35%) removed.

Following shows the average MPG of each of the 72 vehicles in the system.

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• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Jun 2018 • 360 Fuel-ups

  Property of Androokeays

• 14.2 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Mar 2020 • 168 Fuel-ups

  Property of squirt77

• 14.6 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Oct 2024 • 19 Fuel-ups

  Property of SaltyCracker04

• 14.8 Avg MPG

• Walle

  2002 GMC Sierra 1500 WT 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jun 2020 • 82 Fuel-ups

  Property of theforce

• 16.0 Avg MPG

• Sierra

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Standard Cab Pickup
  Added Jul 2018 • 290 Fuel-ups

  Property of unclecrackoon

• 15.9 Avg MPG

• GMC

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 360 Fuel-ups

  Property of UniballLenny

• 16.2 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Sep 2020 • 52 Fuel-ups

  Property of justintime4golf

• 13.5 Avg MPG

• 2002 GMC SIERRA

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2023 • 194 Fuel-ups

  Property of Tommy555

• 9.8 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2024 • 6 Fuel-ups

  Property of asaltare

• 14.4 Avg MPG

• Gmc sieirra

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Oct 2019 • 156 Fuel-ups

  Property of JimMPG

• 14.8 Avg MPG

• GMC Sierra 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2019 • 35 Fuel-ups

  Property of bull-lee

• 14.6 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Speed
  Added Dec 2023 • 21 Fuel-ups

  Property of hardingm06b

• 14.1 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Feb 2023 • 19 Fuel-ups

  Property of zach89

• 14.2 Avg MPG

• 2002 Sierra

  2002 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 38 Fuel-ups

  Property of tmode6871cuda

• 18.1 Avg MPG

• Zach Truck

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2017 • 11 Fuel-ups

  Property of ZPAXTON

• 13.3 Avg MPG

• Danny's Truck

  2002 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 253 Fuel-ups

  Property of danluca

• 14.9 Avg MPG

• 02 Sierra Z71

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 216 Fuel-ups

  Property of pewterformula

• 13.6 Avg MPG

• My Sierra 1500

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Jul 2023 • 3 Fuel-ups

  Property of BGM_Glass

• 14.0 Avg MPG

• 2002 GMC 1500

  2002 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added May 2019 • 58 Fuel-ups

  Property of maslow619

• 13.8 Avg MPG

• 2002 GMC SIERRA

  2002 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Nov 2019 • 182 Fuel-ups

  Property of Tommy555

• 9.4 Avg MPG

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