Based on data from 107 vehicles, 6,083 fuel-ups and 1,783,069 miles of driving, the 2005 GMC Sierra 1500 gets a combined Avg MPG of 14.97 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 (55) 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 (13) Any Submodel WT (4) Denali (6) Base (13) SLT (28) SLE (36) Other (20)

Below you can see a distribution of the fuel-ups with 362 outliers (5.62%) removed.

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

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• RumbleBee

  2005 GMC Sierra 1500 WT 4.3L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 163 Fuel-ups

  Property of kevincoughlin

• 17.2 Avg MPG

• Gia

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jun 2020 • 9 Fuel-ups

  Property of SP3C

• 17.8 Avg MPG

• Sierra

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jun 2018 • 56 Fuel-ups

  Property of petrude

• 12.0 Avg MPG

• The Truck

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jul 2020 • 30 Fuel-ups

  Property of dannycook1010

• 12.2 Avg MPG

• GMC

  2005 GMC Sierra 1500 SLT Automatic 4 Speed
  Added Sep 2019 • 12 Fuel-ups

  Property of aeldicg

• 10.7 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Apr 2021 • 16 Fuel-ups

  Property of samofire

• 11.6 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed
  Added Sep 2020 • 23 Fuel-ups

  Property of MJewell

• 16.6 Avg MPG

• white truck

  2005 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed Standard Cab Pickup
  Added Feb 2012 • 131 Fuel-ups

  Property of hondagarrett

• 14.0 Avg MPG

• My Truck

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added May 2019 • 54 Fuel-ups

  Property of Smokeetr

• 17.8 Avg MPG

• Rusty

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Nov 2018 • 18 Fuel-ups

  Property of dartmouth13

• 13.8 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Feb 2018 • 135 Fuel-ups

  Property of Raptor6

• 14.7 Avg MPG

• z.Denali

  2005 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Nov 2017 • 258 Fuel-ups

  Property of PB98

• 16.7 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Apr 2018 • 143 Fuel-ups

  Property of timpitz

• 17.3 Avg MPG

• Aaron's Truck

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 205 Fuel-ups

  Property of aaronburlando

• 16.6 Avg MPG

• My GMC Sierra

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

  Property of forsythj

• 16.9 Avg MPG

• Red GMC

  2005 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 5 Speed Extended Cab Pickup
  Added Sep 2019 • 3 Fuel-ups

  Property of wildland77

• 17.9 Avg MPG

• My Truck

  2005 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Aug 2019 • 3 Fuel-ups

  Property of roblp

• 15.1 Avg MPG

• My Sierra 1500

  2005 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 4 Speed
  Added Jul 2019 • 6 Fuel-ups

  Property of dkdh2o9

• 19.0 Avg MPG

• 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

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