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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• Gray truck

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 218 Fuel-ups

  Property of svitatoe

• 15.5 Avg MPG

• 2006 GMC Sierra

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Sep 2016 • 57 Fuel-ups

  Property of ih_fan

• 17.6 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Jul 2018 • 29 Fuel-ups

  Property of Katieque1

• 14.0 Avg MPG

• Truck

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2018 • 160 Fuel-ups

  Property of joedondraper

• 14.2 Avg MPG

• gmc sierra

  2006 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed Extended Cab Pickup
  Added Mar 2018 • 207 Fuel-ups

  Property of robert5308

• 14.3 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2019 • 15 Fuel-ups

  Property of xaero81

• 15.5 Avg MPG

• GMC Sierra 1500

  2006 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Aug 2019 • 13 Fuel-ups

  Property of stunner4206

• 13.3 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Jan 2017 • 87 Fuel-ups

  Property of Vloh

• 14.5 Avg MPG

• 06 Sierra 1500

  2006 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Dec 2018 • 314 Fuel-ups

  Property of Tmoore87

• 16.1 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Feb 2019 • 50 Fuel-ups

  Property of tpetrie

• 16.2 Avg MPG

• Moose

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2018 • 24 Fuel-ups

  Property of cmurph314

• 12.0 Avg MPG

• Black Beauty

  2006 GMC Sierra 1500 Denali 6.0L GAS V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Feb 2015 • 85 Fuel-ups

  Property of jdmagri

• 13.1 Avg MPG

• 2006 Sierra

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 132 Fuel-ups

  Property of tonysousa

• 11.2 Avg MPG

• KO5S

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 462 Fuel-ups

  Property of craigw76

• 15.2 Avg MPG

• Truck

  2006 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2018 • 6 Fuel-ups

  Property of Jasonlh77

• 16.6 Avg MPG

• Sierra

  2006 GMC Sierra 1500 SL 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added May 2015 • 148 Fuel-ups

  Property of joegee1773

• 15.4 Avg MPG

• My Sierra 1500

  2006 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Speed
  Added Dec 2018 • 3 Fuel-ups

  Property of matt0517

• 27.0 Avg MPG

• Sierra

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 471 Fuel-ups

  Property of Shooter2131

• 16.6 Avg MPG

• Truck

  2006 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 35 Fuel-ups

  Property of urq20v

• 17.1 Avg MPG

• Big Blue

  2006 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jul 2018 • 44 Fuel-ups

  Property of James203

• 14.2 Avg MPG

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