Based on data from 105 vehicles, 9,344 fuel-ups and 2,647,372 miles of driving, the 2013 GMC Sierra 1500 gets a combined Avg MPG of 14.53 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 (12) V8 FLEX (1) V8 GAS (6) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (10) Crew Cab Pickup (15) Any Submodel Hybrid (1) WT (5) Denali (5) SL (9) SLT (26) SLE (51) Other (8)

Below you can see a distribution of the fuel-ups with 438 outliers (4.48%) removed.

Following shows the average MPG of each of the 105 vehicles in the system.

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• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2021 • 192 Fuel-ups

  Property of Tommymagg

• 15.1 Avg MPG

• 2013 GMC Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Feb 2018 • 805 Fuel-ups

  Property of timbernet

• 14.4 Avg MPG

• Pearl

  2013 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed
  Added Apr 2024 • 83 Fuel-ups

  Property of BertaBoy

• 13.2 Avg MPG

• GMC Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jul 2018 • 220 Fuel-ups

  Property of dbernier

• 13.9 Avg MPG

• 2013 GMC Sierra SLE Extended Cab

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2022 • 226 Fuel-ups

  Property of WalkerSchwengler

• 14.5 Avg MPG

• GMC

  2013 GMC Sierra 1500 SL 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Apr 2019 • 304 Fuel-ups

  Property of radsrh

• 14.0 Avg MPG

• Reg Cab GMC

  2013 GMC Sierra 1500 WT 4.8L V8 FLEX Automatic 4 Speed Standard Cab Pickup
  Added Apr 2023 • 52 Fuel-ups

  Property of Bmesh

• 13.7 Avg MPG

• Gracie

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2021 • 170 Fuel-ups

  Property of mjfassio

• 15.1 Avg MPG

• Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2016 • 434 Fuel-ups

  Property of LooseWheelNut

• 14.3 Avg MPG

• Kodiak 2025

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2025 • 6 Fuel-ups

  Property of walkrobs92

• 7.4 Avg MPG

• Manuel

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX
  Added Jul 2021 • 12 Fuel-ups

  Property of enciso

• 15.3 Avg MPG

• 2013 Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2015 • 540 Fuel-ups

  Property of Zman1001

• 16.0 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2023 • 104 Fuel-ups

  Property of roaming_engineer

• 12.7 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2023 • 554 Fuel-ups

  Property of mab49

• 13.0 Avg MPG

• GMT900 - 2013 GMC Sierra 1500 SLT

  2013 GMC Sierra 1500 SLT 6.2L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2024 • 22 Fuel-ups

  Property of JHEATHJR

• 13.6 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2019 • 214 Fuel-ups

  Property of mjirak

• 15.3 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2023 • 37 Fuel-ups

  Property of Stm85

• 12.3 Avg MPG

• Sierra 1500, 2wd, 3.42 gear

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2022 • 29 Fuel-ups

  Property of Paedpasmi

• 14.8 Avg MPG

• Kodiak 2024

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2024 • 33 Fuel-ups

  Property of walkrobs92

• 10.0 Avg MPG

• Manuel

  2013 GMC Sierra 1500 SLE
  Added Jun 2018 • 205 Fuel-ups

  Property of maenciso

• 15.7 Avg MPG

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