Based on data from 107 vehicles, 7,786 fuel-ups and 2,188,491 miles of driving, the 2006 GMC Sierra 1500 gets a combined Avg MPG of 14.96 with a 0.05 MPG margin of error.

Any Engine Type 4.3L V6 GAS (9) 4.8L V8 GAS (21) 5.3L V8 FLEX (8) 5.3L V8 GAS (50) 6.0L V8 GAS (8) V8 GAS (8) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (14) Crew Cab Pickup (10) Any Submodel Denali (7) WT (8) SL (17) SLT (27) SLE (38) Other (10)

Below you can see a distribution of the fuel-ups with 784 outliers (9.15%) removed.

Following shows the average MPG of each of the 107 vehicles in the system.

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• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2020 • 47 Fuel-ups

  Property of cacf999

• 14.1 Avg MPG

• John

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jun 2024 • 3 Fuel-ups

  Property of pooh

• 13.1 Avg MPG

• 06 Sierra 1500 SLE

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2023 • 35 Fuel-ups

  Property of HoustonC

• 15.4 Avg MPG

• GMC

  2006 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Apr 2022 • 33 Fuel-ups

  Property of RVerv86

• 13.6 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 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

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2023 • 9 Fuel-ups

  Property of Bella2022

• 15.5 Avg MPG

• GMC Sierra 1500

  2006 GMC Sierra 1500 WT 4.8L V8 GAS Automatic Extended Cab Pickup
  Added Apr 2022 • 97 Fuel-ups

  Property of valley445

• 15.3 Avg MPG

• GMC

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Feb 2023 • 244 Fuel-ups

  Property of DGram

• 13.3 Avg MPG

• My 2nd GMC

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Feb 2017 • 206 Fuel-ups

  Property of 3dhawkeye

• 13.9 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2023 • 3 Fuel-ups

  Property of IMA_SHARK

• 47.4 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Oct 2018 • 345 Fuel-ups

  Property of JeremyHelt

• 12.4 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Dec 2020 • 23 Fuel-ups

  Property of gypsy559

• 12.3 Avg MPG

• Eric's Truck

  2006 GMC Sierra 1500 SLE Automatic 4 Speed
  Added Jan 2025 • 5 Fuel-ups

  Property of themela2501

• 17.4 Avg MPG

• Money Pit

  2006 GMC Sierra 1500 SL 4.3L V6 GAS Manual 5 Speed Standard Cab Pickup
  Added Jun 2022 • 6 Fuel-ups

  Property of TeeDubbDizzle

• 15.7 Avg MPG

• The Yetti

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2018 • 284 Fuel-ups

  Property of jonathanrsmith

• 15.2 Avg MPG

• GMC Serria

  2006 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 272 Fuel-ups

  Property of danielscfi

• 16.5 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2022 • 3 Fuel-ups

  Property of kiesy221

• 11.0 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2021 • 11 Fuel-ups

  Property of kiesy221

• 13.7 Avg MPG

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