Based on data from 122 vehicles, 9,816 fuel-ups and 2,769,876 miles of driving, the 2019 GMC Sierra 1500 gets a combined Avg MPG of 16.26 with a 0.06 MPG margin of error.

Any Engine Type 2.7L L4 GAS (1) 3.0L L6 DIESEL (2) 5.3L V8 GAS (65) 6.2L V8 GAS (52) V8 GAS (1) Any Body Style Extended Cab Pickup (6) Crew Cab Pickup (31) Any Submodel SLE (9) Elevation (13) Denali (27) AT4 (36) SLT (37)

Below you can see a distribution of the fuel-ups with 354 outliers (3.48%) removed.

Following shows the average MPG of each of the 122 vehicles in the system.

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• My Sierra 1500

  2019 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Aug 2022 • 23 Fuel-ups

  Property of bradk4687

• 15.8 Avg MPG

• Denali

  2019 GMC Sierra 1500 Denali V8 GAS Automatic 10 Speed
  Added Oct 2018 • 121 Fuel-ups

  Property of DeLuce

• 12.9 Avg MPG

• 2019 GMC Sierra

  2019 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 8 Speed
  Added May 2019 • 182 Fuel-ups

  Property of biddyman

• 16.4 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
  Added Apr 2022 • 52 Fuel-ups

  Property of Bfigs

• 12.8 Avg MPG

• Sierra

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added May 2019 • 155 Fuel-ups

  Property of keibrohogfan

• 15.2 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Jun 2019 • 191 Fuel-ups

  Property of tystark801

• 15.5 Avg MPG

• GMC Sierra AT4

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Mar 2020 • 153 Fuel-ups

  Property of wotring

• 15.4 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
  Added Jun 2019 • 274 Fuel-ups

  Property of jonesie8s

• 16.0 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Sep 2019 • 120 Fuel-ups

  Property of jrbyrne84

• 15.8 Avg MPG

• GMC

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
  Added Sep 2022 • 51 Fuel-ups

  Property of gmc1296

• 15.5 Avg MPG

• GMC Sierra AT4

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
  Added Jan 2023 • 19 Fuel-ups

  Property of scotthamilton

• 14.4 Avg MPG

• Sierra

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Aug 2019 • 68 Fuel-ups

  Property of Geeorgiaboy06

• 17.2 Avg MPG

• Star Trek 2

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Nov 2019 • 129 Fuel-ups

  Property of Quasiman

• 14.9 Avg MPG

• 19 GMC AT4

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Sep 2022 • 17 Fuel-ups

  Property of bseal84

• 17.2 Avg MPG

• My Sierra AT4

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
  Added May 2019 • 168 Fuel-ups

  Property of abcolorado

• 17.3 Avg MPG

• RWRTAH TRUCK

  2019 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
  Added Jun 2020 • 140 Fuel-ups

  Property of RWRTAH

• 15.8 Avg MPG

• 19 GMC Denali

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Oct 2019 • 77 Fuel-ups

  Property of RLDavidson

• 16.8 Avg MPG

• Sierra 1500- 2018

  2019 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 8 Speed
  Added Sep 2019 • 77 Fuel-ups

  Property of RSQPilot

• 18.1 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Oct 2019 • 140 Fuel-ups

  Property of wAAs

• 18.0 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
  Added Jun 2019 • 247 Fuel-ups

  Property of CraigR1901

• 17.9 Avg MPG

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