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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• 6.2 Sierra Crew

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Oct 2014 • 154 Fuel-ups

  Property of bjames

• 16.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Jan 2019 • 245 Fuel-ups

  Property of theduv

• 18.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Feb 2022 • 6 Fuel-ups

  Property of darshanmckay95

• 12.9 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 4.8L V8 FLEX Automatic 4 Speed
  Added Aug 2024 • 3 Fuel-ups

  Property of smosh

• 14.8 Avg MPG

• Old Blue

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic Extended Cab Pickup
  Added Aug 2022 • 20 Fuel-ups

  Property of ExDelayed

• 13.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Dec 2019 • 35 Fuel-ups

  Property of 2004

• 11.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed Cab & Chassis - Crew Cab
  Added May 2023 • 73 Fuel-ups

  Property of Carringtondobbs

• 12.4 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Aug 2020 • 60 Fuel-ups

  Property of Richard19

• 15.1 Avg MPG

• GMC

  2011 GMC Sierra 1500 SLE
  Added Oct 2017 • 58 Fuel-ups

  Property of chrisasilvester

• 15.7 Avg MPG

• GMC PU

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jul 2018 • 278 Fuel-ups

  Property of wdckellogg

• 15.4 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

• 2011 GMC

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Nov 2021 • 20 Fuel-ups

  Property of perroloco85

• 12.2 Avg MPG

• 2011 Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Standard Cab Pickup
  Added Sep 2017 • 157 Fuel-ups

  Property of MightEMatt

• 13.7 Avg MPG

• Silver Beast

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2023 • 8 Fuel-ups

  Property of Dr_Drumm

• 15.9 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Aug 2021 • 89 Fuel-ups

  Property of lwick7

• 15.5 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 4.8L V8 FLEX Automatic 4 Speed
  Added Mar 2023 • 4 Fuel-ups

  Property of GGR23

• 9.5 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed
  Added Dec 2022 • 4 Fuel-ups

  Property of achmiko

• 11.4 Avg MPG

• Denali

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jan 2021 • 148 Fuel-ups

  Property of HawkZ28

• 14.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Mar 2020 • 100 Fuel-ups

  Property of Fuelly_rtismeer

• 16.3 Avg MPG

• Sierra20

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jan 2020 • 376 Fuel-ups

  Property of paultbear

• 17.8 Avg MPG

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