Based on data from 136 vehicles, 14,058 fuel-ups and 3,961,466 miles of driving, the 2019 GMC Sierra 1500 gets a combined Avg MPG of 16.29 with a 0.05 MPG margin of error.

Any Engine Type 2.7L L4 GAS (2) 3.0L L6 DIESEL (2) 4.3L V6 GAS (1) 5.3L V8 GAS (76) 6.2L V8 GAS (53) V8 GAS (1) Any Body Style Extended Cab Pickup (7) Crew Cab Pickup (32) Any Submodel Base (1) SLE (11) Elevation (18) Denali (29) AT4 (38) SLT (39)

Below you can see a distribution of the fuel-ups with 590 outliers (4.03%) removed.

Following shows the average MPG of each of the 136 vehicles in the system.

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• 2019 GMC Sierra

  2019 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 8 Speed
  Added May 2019 • 313 Fuel-ups

  Property of biddyman

• 16.7 Avg MPG

• GMC Sierra 1500

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Aug 2022 • 99 Fuel-ups

  Property of cmm574

• 16.2 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Oct 2019 • 216 Fuel-ups

  Property of wAAs

• 18.0 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Oct 2019 • 169 Fuel-ups

  Property of mbriscoe

• 17.3 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Jan 2024 • 59 Fuel-ups

  Property of nschlim

• 14.2 Avg MPG

• GMC

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
  Added Sep 2022 • 241 Fuel-ups

  Property of gmc1296

• 15.9 Avg MPG

• Sierra Denali 1500

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Dec 2019 • 305 Fuel-ups

  Property of kkib2

• 17.7 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
  Added Mar 2024 • 165 Fuel-ups

  Property of jonestv

• 13.9 Avg MPG

• 19 GMC Denali

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Oct 2019 • 158 Fuel-ups

  Property of RLDavidson

• 17.0 Avg MPG

• My Sierra AT4

  2019 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
  Added May 2019 • 295 Fuel-ups

  Property of abcolorado

• 17.7 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Oct 2022 • 136 Fuel-ups

  Property of sassriverrat

• 17.5 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Aug 2019 • 452 Fuel-ups

  Property of jp3044

• 17.1 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
  Added Jun 2023 • 60 Fuel-ups

  Property of loeljan

• 15.5 Avg MPG

• Blue

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Jul 2019 • 201 Fuel-ups

  Property of anle2000

• 17.4 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
  Added Sep 2019 • 509 Fuel-ups

  Property of jmcauley

• 17.7 Avg MPG

• My Sierra 1500

  2019 GMC Sierra 1500 4.3L V6 GAS Automatic 8 Speed
  Added Sep 2025 • 3 Fuel-ups

  Property of smccaleb376

• 14.6 Avg MPG

• GMC

  2019 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
  Added Oct 2024 • 68 Fuel-ups

  Property of blofferdahl

• 17.0 Avg MPG

• 19 Sierra 1500 SLT

  2019 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
  Added Nov 2019 • 206 Fuel-ups

  Property of Bandemar

• 18.2 Avg MPG

• Blue Machine (GMC)

  2019 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
  Added Sep 2025 • 7 Fuel-ups

  Property of TeamBlue

• 17.7 Avg MPG

• Sierra

  2019 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added May 2019 • 223 Fuel-ups

  Property of keibrohogfan

• 15.8 Avg MPG

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