Based on data from 126 vehicles, 11,218 fuel-ups and 3,313,220 miles of driving, the 2011 GMC Sierra 1500 gets a combined Avg MPG of 15.12 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 (66) 6.2L V8 FLEX (17) V6 GAS (2) V8 FLEX (11) V8 GAS (7) Any Body Style Standard Cab Pickup (4) Extended Cab Pickup (14) Crew Cab Pickup (20) Cab & Chassis - Crew Cab (1) Any Submodel WT (5) SL (9) Denali (10) SLT (25) SLE (53) Other (24)

Below you can see a distribution of the fuel-ups with 1194 outliers (9.62%) removed.

Following shows the average MPG of each of the 126 vehicles in the system.

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• Big Red

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2017 • 335 Fuel-ups

  Property of litcatp

• 16.1 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added May 2024 • 69 Fuel-ups

  Property of soaringbeard

• 11.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Feb 2020 • 55 Fuel-ups

  Property of jmendoza82

• 10.3 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2024 • 44 Fuel-ups

  Property of Ascaniosk10

• 13.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 6.2L V8 FLEX Automatic 6 Speed
  Added Mar 2024 • 16 Fuel-ups

  Property of quicksdraw92

• 14.8 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2018 • 197 Fuel-ups

  Property of fastlsx

• 15.2 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 WT 4.3L V6 GAS Automatic 4 Speed
  Added Jul 2019 • 334 Fuel-ups

  Property of iublue

• 16.7 Avg MPG

• GMC Sierra

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jan 2025 • 760 Fuel-ups

  Property of Aloth600

• 11.4 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 • 186 Fuel-ups

  Property of Yoti14

• 13.4 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2018 • 184 Fuel-ups

  Property of bwines06

• 13.3 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2024 • 6 Fuel-ups

  Property of McQuade

• 25.9 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2024 • 47 Fuel-ups

  Property of chadmoyer24

• 11.6 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Aug 2023 • 293 Fuel-ups

  Property of Hemphog

• 15.6 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Apr 2021 • 113 Fuel-ups

  Property of koald58

• 13.4 Avg MPG

• 6.2 Sierra Crew

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Oct 2014 • 160 Fuel-ups

  Property of bjames

• 16.4 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SL 5.3L V8 FLEX Automatic 6 Speed
  Added May 2017 • 674 Fuel-ups

  Property of Winkman

• 14.7 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2023 • 9 Fuel-ups

  Property of Dillon_the_villain

• 12.9 Avg MPG

• Tom's Truck

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added May 2018 • 265 Fuel-ups

  Property of BigT547

• 14.1 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Apr 2021 • 42 Fuel-ups

  Property of Rdtrkr

• 16.5 Avg MPG

• 2011 Sierra

  2011 GMC Sierra 1500 SLE
  Added Jan 2025 • 313 Fuel-ups

  Property of bpellegr

• 18.4 Avg MPG

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