Based on data from 113 vehicles, 9,169 fuel-ups and 2,751,642 miles of driving, the 2011 GMC Sierra 1500 gets a combined Avg MPG of 15.40 with a 0.06 MPG margin of error.

Any Engine Type 4.3L V6 GAS (2) 4.8L V8 FLEX (11) 5.3L V8 FLEX (57) 6.2L V8 FLEX (14) GAS (1) V6 GAS (2) V8 FLEX (11) V8 GAS (7) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (10) Crew Cab Pickup (18) Any Submodel WT (5) SL (9) Denali (9) SLT (18) SLE (46) Other (26)

Below you can see a distribution of the fuel-ups with 790 outliers (7.93%) removed.

Following shows the average MPG of each of the 113 vehicles in the system.

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• Big Red

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2017 • 253 Fuel-ups

  Property of litcatp

• 15.9 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Aug 2020 • 43 Fuel-ups

  Property of Richard19

• 15.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2018 • 135 Fuel-ups

  Property of bwines06

• 13.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Apr 2021 • 14 Fuel-ups

  Property of Rdtrkr

• 16.6 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Aug 2021 • 51 Fuel-ups

  Property of lwick7

• 15.5 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Apr 2021 • 32 Fuel-ups

  Property of koald58

• 12.8 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2018 • 83 Fuel-ups

  Property of fastlsx

• 14.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 WT 4.3L V6 GAS Automatic 4 Speed
  Added Jul 2019 • 166 Fuel-ups

  Property of iublue

• 16.5 Avg MPG

• 2011 GMC Sierra SLE

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2019 • 65 Fuel-ups

  Property of billweb143

• 10.9 Avg MPG

• GMC PU

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2018 • 201 Fuel-ups

  Property of wdckellogg

• 15.6 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Mar 2020 • 86 Fuel-ups

  Property of Fuelly_rtismeer

• 16.2 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2018 • 166 Fuel-ups

  Property of seanansley3

• 17.6 Avg MPG

• 2011 GMC

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Nov 2021 • 12 Fuel-ups

  Property of perroloco85

• 12.6 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX
  Added Oct 2017 • 273 Fuel-ups

  Property of tjarrard

• 17.7 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SL 5.3L V8 FLEX Automatic 6 Speed
  Added May 2017 • 554 Fuel-ups

  Property of Winkman

• 14.9 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Jan 2019 • 149 Fuel-ups

  Property of theduv

• 17.9 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Feb 2020 • 12 Fuel-ups

  Property of jmendoza82

• 11.4 Avg MPG

• Bernie

  2011 GMC Sierra 1500 WT 4.8L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 164 Fuel-ups

  Property of scbruinsfan

• 17.3 Avg MPG

• 2011 Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Standard Cab Pickup
  Added Sep 2017 • 132 Fuel-ups

  Property of MightEMatt

• 13.7 Avg MPG

• Company 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Nov 2021 • 19 Fuel-ups

  Property of Bunchlife

• 14.0 Avg MPG

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