Based on data from 170 vehicles, 16,421 fuel-ups and 4,858,332 miles of driving, the 2017 GMC Sierra 1500 gets a combined Avg MPG of 16.38 with a 0.05 MPG margin of error.

Any Engine Type 4.3L V6 FLEX (2) 5.3L V8 ELECTRIC/GAS (2) 5.3L V8 FLEX (35) 5.3L V8 GAS (78) 6.2L V8 GAS (47) V8 GAS (2) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (16) Crew Cab Pickup (40) Cab & Chassis - Extended Cab (1) Any Submodel Base (11) Denali (29) SLE (36) SLT (92) Other (2)

Below you can see a distribution of the fuel-ups with 696 outliers (4.07%) removed.

Following shows the average MPG of each of the 170 vehicles in the system.

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• GMC Sierra

  2017 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2020 • 89 Fuel-ups

  Property of jake2687

• 16.5 Avg MPG

• Denali

  2017 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
  Added May 2020 • 54 Fuel-ups

  Property of Superdawg

• 13.7 Avg MPG

• 2017 GMC Sierra

  2017 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Apr 2020 • 208 Fuel-ups

  Property of kellswo

• 16.6 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
  Added Dec 2019 • 183 Fuel-ups

  Property of firecatf7

• 14.4 Avg MPG

• GMC Seirra

  2017 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
  Added Jan 2018 • 354 Fuel-ups

  Property of mick1525

• 16.8 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Oct 2019 • 172 Fuel-ups

  Property of dalestjohn

• 15.3 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
  Added May 2019 • 296 Fuel-ups

  Property of mattfcfd

• 18.8 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
  Added Jun 2021 • 119 Fuel-ups

  Property of dmcghee24

• 14.4 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
  Added Feb 2017 • 466 Fuel-ups

  Property of BCMiller0283

• 15.6 Avg MPG

• Sierra 1500

  2017 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
  Added Sep 2018 • 227 Fuel-ups

  Property of kvanlith

• 16.1 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Dec 2017 • 347 Fuel-ups

  Property of perchlakers

• 18.6 Avg MPG

• 2017 GMC Sierra

  2017 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
  Added Oct 2017 • 167 Fuel-ups

  Property of wlezel

• 14.7 Avg MPG

• Sierra Denali

  2017 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
  Added Dec 2017 • 178 Fuel-ups

  Property of tkanzenbac

• 15.2 Avg MPG

• Sierra 1500

  2017 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
  Added Sep 2020 • 186 Fuel-ups

  Property of SilentJ2k9

• 14.6 Avg MPG

• Chad

  2017 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
  Added Oct 2023 • 71 Fuel-ups

  Property of chriscarpenter

• 14.5 Avg MPG

• GMC Sierra 1500

  2017 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed Standard Cab Pickup
  Added Sep 2018 • 165 Fuel-ups

  Property of BlackBart53

• 19.4 Avg MPG

• My Sierra 1500

  2017 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2020 • 179 Fuel-ups

  Property of fyou

• 16.9 Avg MPG

• Denali

  2017 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
  Added Jun 2017 • 346 Fuel-ups

  Property of cbauer

• 15.6 Avg MPG

• Sierra

  2017 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
  Added Jan 2024 • 15 Fuel-ups

  Property of AJLingwall

• 16.9 Avg MPG

• 2017 GMC Sierra 1500

  2017 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
  Added Aug 2017 • 304 Fuel-ups

  Property of 2012GMCLL

• 17.9 Avg MPG

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