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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• 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

• Sierra

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jun 2018 • 328 Fuel-ups

  Property of paultercier

• 18.0 Avg MPG

• Sierra 1500

  2011 GMC Sierra 1500 SLE 4.8L V8 FLEX Automatic 4 Speed
  Added Jun 2018 • 21 Fuel-ups

  Property of olinski16

• 12.4 Avg MPG

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