Based on data from 99 vehicles, 8,486 fuel-ups and 2,443,294 miles of driving, the 2013 GMC Sierra 1500 gets a combined Avg MPG of 14.65 with a 0.06 MPG margin of error.

Any Engine Type 4.3L V6 GAS (3) 4.8L V8 FLEX (8) 5.3L V8 FLEX (68) 6.0L V8 ELECTRIC/FLEX (1) 6.2L V8 FLEX (9) V8 FLEX (1) V8 GAS (6) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (10) Crew Cab Pickup (14) Any Submodel Hybrid (1) Denali (4) WT (5) SL (8) SLT (23) SLE (50) Other (8)

Below you can see a distribution of the fuel-ups with 400 outliers (4.50%) removed.

Following shows the average MPG of each of the 99 vehicles in the system.

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• Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2016 • 417 Fuel-ups

  Property of LooseWheelNut

• 14.3 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2019 • 96 Fuel-ups

  Property of Chaddy

• 13.5 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2023 • 42 Fuel-ups

  Property of roaming_engineer

• 13.3 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2023 • 434 Fuel-ups

  Property of mab49

• 13.3 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2019 • 195 Fuel-ups

  Property of mjirak

• 15.4 Avg MPG

• GMC

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Nov 2023 • 3 Fuel-ups

  Property of rslawson

• 14.5 Avg MPG

• 2013 GMC Sierra

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Feb 2018 • 719 Fuel-ups

  Property of timbernet

• 14.4 Avg MPG

• 2013 GMC Sierra SLE Extended Cab

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2022 • 124 Fuel-ups

  Property of WalkerSchwengler

• 14.8 Avg MPG

• Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added May 2023 • 24 Fuel-ups

  Property of mikecap67

• 15.9 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2021 • 119 Fuel-ups

  Property of mjfassio

• 15.1 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2023 • 10 Fuel-ups

  Property of Stm85

• 12.6 Avg MPG

• Kodiak 2023

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jan 2023 • 40 Fuel-ups

  Property of walkrobs92

• 10.4 Avg MPG

• My Sierra 1500

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2021 • 99 Fuel-ups

  Property of Tommymagg

• 15.3 Avg MPG

• GMC

  2013 GMC Sierra 1500 SL 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Apr 2019 • 275 Fuel-ups

  Property of radsrh

• 14.3 Avg MPG

• 2013 Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2015 • 478 Fuel-ups

  Property of Zman1001

• 16.1 Avg MPG

• GMC Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jul 2018 • 187 Fuel-ups

  Property of dbernier

• 13.9 Avg MPG

• Reg Cab GMC

  2013 GMC Sierra 1500 WT 4.8L V8 FLEX Automatic 4 Speed Standard Cab Pickup
  Added Apr 2023 • 25 Fuel-ups

  Property of Bmesh

• 14.4 Avg MPG

• Manuel

  2013 GMC Sierra 1500 SLE
  Added Jun 2018 • 181 Fuel-ups

  Property of maenciso

• 15.7 Avg MPG

• Sierra 1500, 2wd, 3.42 gear

  2013 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jul 2022 • 14 Fuel-ups

  Property of Paedpasmi

• 14.2 Avg MPG

• 2013 GMC Sierra

  2013 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Crew Cab Pickup (4 Door)
  Added Jul 2015 • 187 Fuel-ups

  Property of rjbergen

• 13.3 Avg MPG

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