Based on data from 121 vehicles, 10,192 fuel-ups and 3,030,567 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 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Feb 2020 • 43 Fuel-ups

  Property of jmendoza82

• 10.2 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

• 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

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Dec 2019 • 34 Fuel-ups

  Property of 2004

• 11.4 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Aug 2020 • 59 Fuel-ups

  Property of Richard19

• 15.1 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

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic Extended Cab Pickup
  Added Aug 2022 • 14 Fuel-ups

  Property of ExDelayed

• 13.3 Avg MPG

• GMC white diamond

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2016 • 408 Fuel-ups

  Property of littleharold

• 13.6 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

• Tom's Truck

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2018 • 261 Fuel-ups

  Property of BigT547

• 14.2 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

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2022 • 19 Fuel-ups

  Property of firefighter3520

• 11.7 Avg MPG

• 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

• GMC

  2011 GMC Sierra 1500 SLE
  Added Oct 2017 • 57 Fuel-ups

  Property of chrisasilvester

• 16.2 Avg MPG

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