Based on data from 123 vehicles, 10,580 fuel-ups and 3,136,669 miles of driving, the 2011 GMC Sierra 1500 gets a combined Avg MPG of 15.27 with a 0.06 MPG margin of error.

Any Engine Type 4.3L V6 GAS (2) 4.8L V8 FLEX (13) 5.3L V8 FLEX (64) 6.2L V8 FLEX (16) 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 (52) Other (25)

Below you can see a distribution of the fuel-ups with 827 outliers (7.25%) removed.

Following shows the average MPG of each of the 123 vehicles in the system.

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• GMC truck

  2011 GMC Sierra 1500 WT 4.8L V8 FLEX Standard Cab Pickup
  Added Apr 2022 • 4 Fuel-ups

  Property of hhin

• 16.0 Avg MPG

• Company 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Nov 2021 • 23 Fuel-ups

  Property of Bunchlife

• 14.3 Avg MPG

• The Grey One

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2014 • 186 Fuel-ups

  Property of Mikee_Like

• 15.7 Avg MPG

• Gemma

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Aug 2020 • 26 Fuel-ups

  Property of DougTippler

• 15.8 Avg MPG

• Kate

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Mar 2017 • 244 Fuel-ups

  Property of CDunham

• 26.1 Avg MPG

• Truck Sierra Slt 2011

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2020 • 19 Fuel-ups

  Property of jeter0124

• 14.2 Avg MPG

• 2011 GMC

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Mar 2024 • 383 Fuel-ups

  Property of drlageng

• 16.3 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Jun 2019 • 139 Fuel-ups

  Property of ddownton1

• 14.0 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Jul 2016 • 183 Fuel-ups

  Property of spisham

• 15.7 Avg MPG

• Dad's pickup

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2016 • 20 Fuel-ups

  Property of elroy1985

• 11.3 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 175 Fuel-ups

  Property of fleck1017

• 14.0 Avg MPG

• RSMC - Canada Post

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed Extended Cab Pickup
  Added Apr 2018 • 118 Fuel-ups

  Property of GMC_Sierra_2011

• 14.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 49 Fuel-ups

  Property of ajb529

• 15.0 Avg MPG

• GMC

  2011 GMC Sierra 1500 SLE
  Added Oct 2018 • 15 Fuel-ups

  Property of chrisasilvester

• 15.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed
  Added Dec 2017 • 42 Fuel-ups

  Property of xrudeboyx

• 14.1 Avg MPG

• White Denali

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Mar 2019 • 8 Fuel-ups

  Property of Corvettefan8

• 8.5 Avg MPG

• 2011 GMC Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX
  Added Feb 2019 • 452 Fuel-ups

  Property of stevenlpennington

• 16.4 Avg MPG

• Gmc

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2016 • 397 Fuel-ups

  Property of jerfhand

• 15.2 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Oct 2018 • 330 Fuel-ups

  Property of paultercier

• 18.0 Avg MPG

• dont use

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jan 2020 • 328 Fuel-ups

  Property of paultbear

• 18.0 Avg MPG

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