Based on data from 100 vehicles, 7,503 fuel-ups and 2,119,350 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 (7) 5.3L V8 GAS (48) 6.0L V8 GAS (8) V8 GAS (8) Any Body Style Standard Cab Pickup (2) Extended Cab Pickup (14) Crew Cab Pickup (8) Any Submodel Denali (7) WT (8) SL (15) SLT (25) SLE (35) Other (10)

Below you can see a distribution of the fuel-ups with 760 outliers (9.20%) removed.

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

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• Sierra

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 81 Fuel-ups

  Property of dougpfla

• 12.4 Avg MPG

• Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2016 • 160 Fuel-ups

  Property of jcoastie

• 15.1 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Nov 2016 • 13 Fuel-ups

  Property of traxxas5308

• 13.8 Avg MPG

• GMC

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 43 Fuel-ups

  Property of Jimbo57

• 14.1 Avg MPG

• Denali

  2006 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Apr 2018 • 131 Fuel-ups

  Property of adcdt

• 12.4 Avg MPG

• Top End Dragways Rescue/Fire

  2006 GMC Sierra 1500 SL 5.3L V8 GAS Automatic 4 Speed Standard Cab Pickup
  Added Feb 2015 • 35 Fuel-ups

  Property of chuckatthetrack

• 15.8 Avg MPG

• Sierra

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 118 Fuel-ups

  Property of jacksdad11

• 12.9 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Nov 2017 • 3 Fuel-ups

  Property of nagz6942

• 12.3 Avg MPG

• Bruce - Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 18 Fuel-ups

  Property of Roboticboredom

• 14.9 Avg MPG

• Sierra

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added May 2014 • 36 Fuel-ups

  Property of chevyman142000

• 15.3 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Oct 2017 • 5 Fuel-ups

  Property of rcuevas85

• 17.1 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2017 • 7 Fuel-ups

  Property of Heneisend

• 14.6 Avg MPG

• GMC Sierra

  2006 GMC Sierra 1500 SL 5.3L V8 GAS Automatic 4 Speed
  Added May 2017 • 54 Fuel-ups

  Property of dpeters92

• 20.8 Avg MPG

• 2006GMCSierra

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 35 Fuel-ups

  Property of JustinBenz

• 16.4 Avg MPG

• Darth

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Feb 2017 • 16 Fuel-ups

  Property of jstrickland1028

• 16.1 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Jun 2016 • 40 Fuel-ups

  Property of bamaref1

• 17.8 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2017 • 16 Fuel-ups

  Property of Fracture

• 12.8 Avg MPG

• GMC

  2006 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 269 Fuel-ups

  Property of bedickson

• 15.4 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 3 Fuel-ups

  Property of fjammer_jon

• 12.0 Avg MPG

• Gmc 1500

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 148 Fuel-ups

  Property of speedlt11

• 13.3 Avg MPG

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