Based on data from 113 vehicles, 9,238 fuel-ups and 2,772,149 miles of driving, the 2011 GMC Sierra 1500 gets a combined Avg MPG of 15.40 with a 0.06 MPG margin of error.

Any Engine Type 4.3L V6 GAS (2) 4.8L V8 FLEX (11) 5.3L V8 FLEX (57) 6.2L V8 FLEX (14) GAS (1) V6 GAS (2) V8 FLEX (11) V8 GAS (7) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (10) Crew Cab Pickup (18) Any Submodel WT (5) SL (9) Denali (9) SLT (18) SLE (46) Other (26)

Below you can see a distribution of the fuel-ups with 791 outliers (7.89%) removed.

Following shows the average MPG of each of the 113 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 Oct 2017 • 3 Fuel-ups

  Property of Swads

• 19.4 Avg MPG

• GMC Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2017 • 6 Fuel-ups

  Property of KFriel

• 15.1 Avg MPG

• GMC Sierra Denali

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Dec 2016 • 13 Fuel-ups

  Property of hdroadking1955

• 16.6 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Aug 2017 • 9 Fuel-ups

  Property of charliemurphy207

• 16.4 Avg MPG

• Black Beasty Pig

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 13 Fuel-ups

  Property of mrcreative

• 15.1 Avg MPG

• Gmc sierra

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 11 Fuel-ups

  Property of chadohio1

• 115.7 Avg MPG

• Silver Beast

  2011 GMC Sierra 1500 SLE 4.8L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 11 Fuel-ups

  Property of Dr_Drumm

• 17.1 Avg MPG

• Sierra 1500

  2011 GMC Sierra 1500 WT 4.8L V8 FLEX Automatic 4 Speed
  Added Oct 2016 • 20 Fuel-ups

  Property of 1Swampy1

• 13.5 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2016 • 12 Fuel-ups

  Property of Worker

• 13.0 Avg MPG

• GMC Sierra 5.3 Liter Z-71 4x4

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 247 Fuel-ups

  Property of Bulldog1985

• 18.5 Avg MPG

• Gaviota

  2011 GMC Sierra 1500 GAS V6
  Added Feb 2014 • 42 Fuel-ups

  Property of jalcerna

• 14.6 Avg MPG

• Chevy/GMC4

  2011 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jan 2016 • 16 Fuel-ups

  Property of Abmd

• 16.7 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2016 • 4 Fuel-ups

  Property of rojenlan

• 12.8 Avg MPG

• My Sierra 1500

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Crew Cab Pickup (4 Door)
  Added Jul 2015 • 10 Fuel-ups

  Property of Mstgkillr

• 14.6 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Feb 2015 • 107 Fuel-ups

  Property of civicsiracer06

• 14.8 Avg MPG

• Blue River

  2011 GMC Sierra 1500 SLE
  Added Mar 2014 • 53 Fuel-ups

  Property of urallclearkid

• 13.3 Avg MPG

• 2011 GMC Truck

  2011 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 195 Fuel-ups

  Property of Gonzo928

• 14.5 Avg MPG

• Sierra

  2011 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Oct 2013 • 9 Fuel-ups

  Property of paultbear

• 19.3 Avg MPG

• Black

  2011 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 93 Fuel-ups

  Property of Dukesask

• 15.0 Avg MPG

• gmc 1500

  2011 GMC Sierra 1500 SLT 5.3L FLEX V8 Automatic 6 Crew Cab Pickup (4 Door)
  Added Jun 2015 • 5 Fuel-ups

  Property of steve-o3518

• 15.3 Avg MPG

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