Based on data from 109 vehicles, 6,270 fuel-ups and 1,834,930 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 (5.52%) removed.

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

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• Run GMC

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Dec 2018 • 49 Fuel-ups

  Property of swmwshrk

• 14.6 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2019 • 7 Fuel-ups

  Property of alz2300

• 15.0 Avg MPG

• GMC

  2005 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 82 Fuel-ups

  Property of prukop01

• 14.4 Avg MPG

• Sierra

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2018 • 73 Fuel-ups

  Property of TravisAChapman

• 17.2 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Feb 2018 • 10 Fuel-ups

  Property of turkman22

• 14.5 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2018 • 5 Fuel-ups

  Property of newjay

• 22.3 Avg MPG

• GMC Sierra 2005

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 399 Fuel-ups

  Property of JLF52

• 16.7 Avg MPG

• 05 GMC Sierra

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Oct 2016 • 42 Fuel-ups

  Property of EricS

• 15.4 Avg MPG

• 2005 Red GMC

  2005 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed Standard Cab Pickup
  Added May 2014 • 116 Fuel-ups

  Property of gettinricher

• 19.6 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed
  Added Aug 2017 • 14 Fuel-ups

  Property of faultline

• 16.4 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Dec 2017 • 5 Fuel-ups

  Property of aaron_1

• 10.1 Avg MPG

• 2005 GMC Sierra

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

  Property of GWalsh

• 15.2 Avg MPG

• Sierra

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2017 • 5 Fuel-ups

  Property of Scionide

• 17.6 Avg MPG

• dive truck

  2005 GMC Sierra 1500 5.3L GAS V8 Automatic 3 Standard Cab Pickup (2 Door)
  Added Apr 2015 • 54 Fuel-ups

  Property of Capttim

• 18.1 Avg MPG

• Sierra

  2005 GMC Sierra 1500 GAS V8
  Added Aug 2013 • 64 Fuel-ups

  Property of Ridethebigone

• 15.0 Avg MPG

• Z71 Pickup

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Mar 2012 • 213 Fuel-ups

  Property of BobEazy

• 15.9 Avg MPG

• GMC Sierra

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Nov 2015 • 33 Fuel-ups

  Property of berlingoff

• 14.1 Avg MPG

• Work Truck

  2005 GMC Sierra 1500 SLE 5.3L GAS V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Aug 2014 • 28 Fuel-ups

  Property of blackrandom

• 16.9 Avg MPG

• Dad's GMC

  2005 GMC Sierra 1500 GAS V8
  Added Oct 2012 • 6 Fuel-ups

  Property of kellen

• 15.8 Avg MPG

• Sierra

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2017 • 27 Fuel-ups

  Property of iambucket

• 15.0 Avg MPG

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