Based on data from 103 vehicles, 9,107 fuel-ups and 2,593,803 miles of driving, the 2013 GMC Sierra 1500 gets a combined Avg MPG of 14.56 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 (69) 6.0L V8 ELECTRIC/FLEX (1) 6.2L V8 FLEX (11) 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) WT (5) Denali (5) SL (9) SLT (25) SLE (50) Other (8)

Below you can see a distribution of the fuel-ups with 428 outliers (4.49%) removed.

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

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• 2013 GMC Sierra SLE Extended Cab

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2022 • 201 Fuel-ups

  Property of WalkerSchwengler

• 14.7 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2023 • 90 Fuel-ups

  Property of roaming_engineer

• 12.8 Avg MPG

• Gertie

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2021 • 147 Fuel-ups

  Property of mjfassio

• 15.1 Avg MPG

• GMC

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Nov 2023 • 6 Fuel-ups

  Property of rslawson

• 14.1 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2021 • 169 Fuel-ups

  Property of Tommymagg

• 15.2 Avg MPG

• GMC Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jul 2018 • 207 Fuel-ups

  Property of dbernier

• 13.9 Avg MPG

• Pearl

  2013 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Apr 2024 • 50 Fuel-ups

  Property of BertaBoy

• 13.7 Avg MPG

• GMC

  2013 GMC Sierra 1500 SL 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Apr 2019 • 299 Fuel-ups

  Property of radsrh

• 14.1 Avg MPG

• 2013 Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2015 • 519 Fuel-ups

  Property of Zman1001

• 16.1 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2023 • 528 Fuel-ups

  Property of mab49

• 13.0 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2023 • 33 Fuel-ups

  Property of Stm85

• 12.4 Avg MPG

• Reg Cab GMC

  2013 GMC Sierra 1500 WT 4.8L V8 FLEX Automatic 4 Speed Standard Cab Pickup
  Added Apr 2023 • 45 Fuel-ups

  Property of Bmesh

• 13.8 Avg MPG

• 2013 GMC Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Feb 2018 • 780 Fuel-ups

  Property of timbernet

• 14.4 Avg MPG

• Kodiak 2024

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2024 • 30 Fuel-ups

  Property of walkrobs92

• 10.2 Avg MPG

• Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2016 • 427 Fuel-ups

  Property of LooseWheelNut

• 14.3 Avg MPG

• Sierra 1500, 2wd, 3.42 gear

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2022 • 28 Fuel-ups

  Property of Paedpasmi

• 14.8 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2019 • 209 Fuel-ups

  Property of mjirak

• 15.3 Avg MPG

• Manuel

  2013 GMC Sierra 1500 SLE
  Added Jun 2018 • 204 Fuel-ups

  Property of maenciso

• 15.5 Avg MPG

• Blue Sierra Crew Cab

  2013 GMC Sierra 1500 SL 4.8L V8 FLEX Automatic 4 Speed
  Added Mar 2024 • 16 Fuel-ups

  Property of Kevins_Kars

• 15.9 Avg MPG

• Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Aug 2016 • 216 Fuel-ups

  Property of brad8598

• 15.6 Avg MPG

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