Based on data from 109 vehicles, 6,300 fuel-ups and 1,843,732 miles of driving, the 2005 GMC Sierra 1500 gets a combined Avg MPG of 14.95 with a 0.07 MPG margin of error.

Any Engine Type 4.3L V6 GAS (11) 4.8L V8 GAS (7) 5.3L V8 FLEX (7) 5.3L V8 GAS (57) 6.0L V8 GAS (6) V6 GAS (3) V8 GAS (15) Any Body Style Standard Cab Pickup (6) Extended Cab Pickup (9) Crew Cab Pickup (14) Any Submodel WT (4) Denali (6) Base (13) SLT (28) SLE (38) Other (20)

Below you can see a distribution of the fuel-ups with 366 outliers (5.49%) removed.

Following shows the average MPG of each of the 109 vehicles in the system.

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• sierra

  2005 GMC Sierra 1500 4.3L GAS V6 Automatic 4 Extended Cab Pickup (4 Door)
  Added Oct 2014 • 7 Fuel-ups

  Property of dbarrett231

• 11.3 Avg MPG

• Sierra

  2005 GMC Sierra 1500 SLT 5.3L GAS V8 Automatic 4 Extended Cab Pickup (4 Door)
  Added Jul 2014 • 4 Fuel-ups

  Property of gojetsgo

• 15.0 Avg MPG

• Denali

  2005 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 23 Fuel-ups

  Property of maklak

• 14.8 Avg MPG

• GMC

  2005 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 33 Fuel-ups

  Property of pacrat

• 14.4 Avg MPG

• Jamie's GMC

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Dec 2016 • 57 Fuel-ups

  Property of jamboul

• 16.1 Avg MPG

• GMC Sierra

  2005 GMC Sierra 1500 5.3L V8 GAS Automatic 4 Speed
  Added Apr 2017 • 87 Fuel-ups

  Property of deebunch

• 20.9 Avg MPG

• Sierra

  2005 GMC Sierra 1500 GAS V6
  Added Apr 2012 • 48 Fuel-ups

  Property of ShootingShabaz

• 18.1 Avg MPG

• GMC Pickup

  2005 GMC Sierra 1500 GAS V8
  Added Mar 2013 • 26 Fuel-ups

  Property of Kijit

• 18.8 Avg MPG

• GMC Crewcab

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2017 • 115 Fuel-ups

  Property of HuskerFuel

• 14.8 Avg MPG

• GMC Crewcab

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 115 Fuel-ups

  Property of HuskerFuel

• 14.8 Avg MPG

• Sierra

  2005 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Oct 2017 • 103 Fuel-ups

  Property of shollz

• 16.8 Avg MPG

• Truck

  2005 GMC Sierra 1500 GAS V8
  Added Sep 2011 • 53 Fuel-ups

  Property of mxeightyeight

• 15.7 Avg MPG

• GMC Sierra 1500

  2005 GMC Sierra 1500 GAS V8
  Added Nov 2011 • 37 Fuel-ups

  Property of Kelvin

• 18.8 Avg MPG

• Sierra

  2005 GMC Sierra 1500 GAS V8
  Added Jan 2012 • 116 Fuel-ups

  Property of Mikeyboy

• 15.3 Avg MPG

• Truck

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jan 2018 • 67 Fuel-ups

  Property of munterhitch

• 16.0 Avg MPG

• 2005 GMC serria

  2005 GMC Sierra 1500 GAS V6
  Added Oct 2012 • 14 Fuel-ups

  Property of gantt

• 12.1 Avg MPG

• GMC Sierra

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Nov 2017 • 7 Fuel-ups

  Property of kscowden

• 17.2 Avg MPG

• The truck.

  2005 GMC Sierra 1500 GAS V8
  Added May 2012 • 7 Fuel-ups

  Property of 99CivicSiR

• 14.2 Avg MPG

• 05 Sierra Crewcab SLT

  2005 GMC Sierra 1500
  Added Mar 2010 • 60 Fuel-ups

  Property of allen1090

• 14.6 Avg MPG

• t4keum

  2005 GMC Sierra 1500 GAS V8
  Added May 2012 • 7 Fuel-ups

  Property of t4keumbw

• 15.6 Avg MPG

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