Based on data from 121 vehicles, 10,189 fuel-ups and 3,030,046 miles of driving, the 2011 GMC Sierra 1500 gets a combined Avg MPG of 15.30 with a 0.06 MPG margin of error.

Any Engine Type 4.3L V6 GAS (2) 4.8L V8 FLEX (12) 5.3L V8 FLEX (64) 6.2L V8 FLEX (15) GAS (1) V6 GAS (2) V8 FLEX (11) V8 GAS (7) Any Body Style Standard Cab Pickup (4) Extended Cab Pickup (13) Crew Cab Pickup (19) Cab & Chassis - Crew Cab (1) Any Submodel WT (5) SL (9) Denali (10) SLT (22) SLE (50) Other (25)

Below you can see a distribution of the fuel-ups with 820 outliers (7.45%) removed.

Following shows the average MPG of each of the 121 vehicles in the system.

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• My Sierra 1500

  2011 GMC Sierra 1500 WT 4.3L V6 GAS Automatic 4 Speed
  Added Jul 2019 • 285 Fuel-ups

  Property of iublue

• 16.6 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed Cab & Chassis - Crew Cab
  Added May 2023 • 63 Fuel-ups

  Property of Carringtondobbs

• 12.7 Avg MPG

• GMC PU

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jul 2018 • 276 Fuel-ups

  Property of wdckellogg

• 15.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2024 • 3 Fuel-ups

  Property of Ascaniosk10

• 13.2 Avg MPG

• Yoti's SLT 1500 Z71

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jul 2022 • 115 Fuel-ups

  Property of Yoti14

• 13.3 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2024 • 10 Fuel-ups

  Property of chadmoyer24

• 12.2 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2018 • 173 Fuel-ups

  Property of fastlsx

• 15.5 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2023 • 5 Fuel-ups

  Property of Dillon_the_villain

• 13.2 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SL 5.3L V8 FLEX Automatic 6 Speed
  Added May 2017 • 636 Fuel-ups

  Property of Winkman

• 14.8 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Apr 2021 • 86 Fuel-ups

  Property of koald58

• 13.3 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Aug 2023 • 266 Fuel-ups

  Property of Hemphog

• 15.5 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2018 • 244 Fuel-ups

  Property of seanansley3

• 17.5 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX
  Added Oct 2017 • 357 Fuel-ups

  Property of tjarrard

• 17.7 Avg MPG

• 2011 GMC Sierra SLE

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2019 • 98 Fuel-ups

  Property of billweb143

• 10.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Jan 2019 • 230 Fuel-ups

  Property of theduv

• 18.1 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Apr 2021 • 30 Fuel-ups

  Property of Rdtrkr

• 16.8 Avg MPG

• Big Red

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2017 • 303 Fuel-ups

  Property of litcatp

• 16.0 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Nov 2018 • 14 Fuel-ups

  Property of lt1z1997

• 10.0 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2018 • 163 Fuel-ups

  Property of bwines06

• 13.2 Avg MPG

• 6.2 Sierra Crew

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Oct 2014 • 148 Fuel-ups

  Property of bjames

• 16.4 Avg MPG

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