Based on data from 103 vehicles, 8,741 fuel-ups and 2,505,894 miles of driving, the 2013 GMC Sierra 1500 gets a combined Avg MPG of 14.60 with a 0.06 MPG margin of error.

Any Engine Type 4.3L V6 GAS (3) 4.8L V8 FLEX (9) 5.3L V8 FLEX (70) 6.0L V8 ELECTRIC/FLEX (1) 6.2L V8 FLEX (10) V8 FLEX (1) V8 GAS (6) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (11) Crew Cab Pickup (14) Any Submodel Hybrid (1) Denali (4) WT (5) SL (9) SLT (25) SLE (51) Other (8)

Below you can see a distribution of the fuel-ups with 417 outliers (4.55%) removed.

Following shows the average MPG of each of the 103 vehicles in the system.

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• Truck

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Feb 2019 • 4 Fuel-ups

  Property of AdaValleyBoy

• 15.5 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Aug 2017 • 125 Fuel-ups

  Property of Profbrown

• 14.2 Avg MPG

• Kodiak 2018

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2018 • 35 Fuel-ups

  Property of walkrobs92

• 11.0 Avg MPG

• Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 99 Fuel-ups

  Property of rendrog

• 15.6 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2018 • 17 Fuel-ups

  Property of cupac

• 14.6 Avg MPG

• Big Black

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Aug 2017 • 8 Fuel-ups

  Property of tharam04

• 29.0 Avg MPG

• Sierra 16

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2018 • 88 Fuel-ups

  Property of msova2

• 14.4 Avg MPG

• 2013 GMC Sierra 1500 wt 4.3

  2013 GMC Sierra 1500 WT 4.3L V6 GAS Automatic 4 Speed
  Added Nov 2013 • 146 Fuel-ups

  Property of Adrian2410

• 14.5 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Apr 2017 • 19 Fuel-ups

  Property of oneluv912

• 14.4 Avg MPG

• Phasma

  2013 GMC Sierra 1500 Hybrid 6.0L V8 ELECTRIC/FLEX Automatic 4 Speed Crew Cab Pickup
  Added Apr 2016 • 46 Fuel-ups

  Property of Slick1100

• 18.7 Avg MPG

• Kodiak 2017

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2017 • 7 Fuel-ups

  Property of walkrobs92

• 8.9 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 4.8L V8 FLEX Automatic 4 Speed
  Added Jun 2017 • 36 Fuel-ups

  Property of dlcole65

• 16.4 Avg MPG

• Work 2013

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 264 Fuel-ups

  Property of bgiesbrecht

• 12.0 Avg MPG

• Trevor

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2017 • 162 Fuel-ups

  Property of CrazyD

• 21.9 Avg MPG

• Denali

  2013 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Jan 2016 • 35 Fuel-ups

  Property of Redline_driving_11

• 14.8 Avg MPG

• 2013 GMC Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Oct 2017 • 68 Fuel-ups

  Property of Bossmanone

• 15.3 Avg MPG

• Quicksilver

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Feb 2015 • 136 Fuel-ups

  Property of Mdwarchichoke

• 15.4 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2016 • 3 Fuel-ups

  Property of tineseeker

• 20.3 Avg MPG

• Truck

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jul 2013 • 46 Fuel-ups

  Property of ssns09vibe

• 14.4 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L FLEX V8 Automatic 6
  Added Feb 2015 • 44 Fuel-ups

  Property of Funnyguy1045

• 14.7 Avg MPG

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