Based on data from 100 vehicles, 7,381 fuel-ups and 2,080,220 miles of driving, the 2006 GMC Sierra 1500 gets a combined Avg MPG of 14.98 with a 0.05 MPG margin of error.

Any Engine Type 4.3L V6 GAS (8) 4.8L V8 GAS (19) 5.3L V8 FLEX (6) 5.3L V8 GAS (47) 6.0L V8 GAS (9) V8 FLEX (1) V8 GAS (8) Any Body Style Standard Cab Pickup (2) Extended Cab Pickup (14) Crew Cab Pickup (7) Any Submodel WT (8) Denali (8) SL (15) SLT (23) SLE (35) Other (11)

Below you can see a distribution of the fuel-ups with 755 outliers (9.28%) removed.

Following shows the average MPG of each of the 100 vehicles in the system.

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• GMC

  2006 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed Extended Cab Pickup
  Added Sep 2019 • 348 Fuel-ups

  Property of claybo1708

• 16.6 Avg MPG

• CODE BLUE T

  2006 GMC Sierra 1500 FLEX V8
  Added Jul 2011 • 204 Fuel-ups

  Property of CowboyX5D

• 15.2 Avg MPG

• 2006 GMC Pickup

  2006 GMC Sierra 1500 SL 4.3L V6 GAS
  Added Nov 2023 • 25 Fuel-ups

  Property of funsize441

• 14.9 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 4 Speed
  Added Feb 2024 • 18 Fuel-ups

  Property of ajswartz

• 13.0 Avg MPG

• 06 Sierra 1500 SLE

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2023 • 26 Fuel-ups

  Property of HoustonC

• 15.5 Avg MPG

• Carter's Truck

  2006 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 847 Fuel-ups

  Property of Carterjr

• 12.9 Avg MPG

• Truck

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Sep 2020 • 190 Fuel-ups

  Property of klsmth

• 16.5 Avg MPG

• GMC

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2018 • 162 Fuel-ups

  Property of kevind257

• 15.0 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Nov 2023 • 21 Fuel-ups

  Property of buddyackell

• 14.3 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 WT 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2024 • 6 Fuel-ups

  Property of pibbkc

• 14.0 Avg MPG

• Gary'Pickup

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2018 • 217 Fuel-ups

  Property of GDarby

• 17.9 Avg MPG

• Sierra 1500

  2006 GMC Sierra 1500 WT 4.3L V6 GAS Automatic 4 Speed
  Added Jul 2022 • 19 Fuel-ups

  Property of LotaCars

• 15.4 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2020 • 45 Fuel-ups

  Property of cacf999

• 14.2 Avg MPG

• Sierra SLE

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Nov 2023 • 18 Fuel-ups

  Property of Mortimis

• 12.6 Avg MPG

• GMC

  2006 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Apr 2022 • 29 Fuel-ups

  Property of RVerv86

• 13.6 Avg MPG

• Trucky

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 345 Fuel-ups

  Property of starky98

• 15.3 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added May 2022 • 7 Fuel-ups

  Property of lemerk

• 16.7 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Mar 2023 • 83 Fuel-ups

  Property of Idril4oil

• 13.7 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jul 2023 • 15 Fuel-ups

  Property of JarredAskins

• 16.5 Avg MPG

• Grey Sierra

  2006 GMC Sierra 1500 WT 4.8L V8 GAS Automatic 4 Speed
  Added Oct 2021 • 39 Fuel-ups

  Property of jacmohr

• 16.3 Avg MPG

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