Based on data from 257 vehicles, 25,360 fuel-ups and 7,619,940 miles of driving, the 2014 GMC Sierra 1500 gets a combined Avg MPG of 15.64 with a 0.04 MPG margin of error.

Any Engine Type 4.3L V6 FLEX (20) 5.3L V8 FLEX (170) 6.2L V8 GAS (26) GAS (2) V6 GAS (6) V8 GAS (24) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (18) Crew Cab Pickup (48) Cab & Chassis - Crew Cab (2) Any Submodel Base (15) Denali (19) SLE (93) SLT (94) Other (36)

Below you can see a distribution of the fuel-ups with 1120 outliers (4.23%) removed.

Following shows the average MPG of each of the 257 vehicles in the system.

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• ...
• 12
• 13
• »

• My Sierra 1500

  2014 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
  Added Dec 2018 • 372 Fuel-ups

  Property of bnlitton

• 15.1 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
  Added Feb 2024 • 20 Fuel-ups

  Property of Bward7

• 13.7 Avg MPG

• Truck

  2014 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Aug 2018 • 1140 Fuel-ups

  Property of shuckeba

• 11.2 Avg MPG

• 2014 GMC Sierra

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Apr 2019 • 216 Fuel-ups

  Property of hoffman720

• 13.8 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2016 • 345 Fuel-ups

  Property of cbass25

• 13.5 Avg MPG

• 2014 GMC

  2014 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jan 2024 • 16 Fuel-ups

  Property of Toddskia

• 14.5 Avg MPG

• 14 Sierra

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Apr 2018 • 349 Fuel-ups

  Property of Bassbuster88

• 15.1 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Oct 2024 • 24 Fuel-ups

  Property of truckerjosh

• 15.5 Avg MPG

• GMC sierra allterrain

  2014 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Feb 2018 • 299 Fuel-ups

  Property of jayner86

• 11.5 Avg MPG

• My Sierra 1500 SLT

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Apr 2023 • 71 Fuel-ups

  Property of jamesg88

• 17.6 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
  Added Sep 2018 • 278 Fuel-ups

  Property of Gott42

• 14.8 Avg MPG

• Dale

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
  Added Jan 2025 • 427 Fuel-ups

  Property of anousackns

• 15.7 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Nov 2018 • 211 Fuel-ups

  Property of Vrooom7979

• 14.6 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Dec 2020 • 203 Fuel-ups

  Property of Don31980

• 14.3 Avg MPG

• Giannina

  2014 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2020 • 162 Fuel-ups

  Property of Afterlife

• 13.6 Avg MPG

• Sierra 1500

  2014 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Dec 2023 • 426 Fuel-ups

  Property of BMooyaso

• 18.9 Avg MPG

• My Sierra 1500

  2014 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 6 Speed
  Added May 2022 • 38 Fuel-ups

  Property of livewyre13

• 12.6 Avg MPG

• GMC

  2014 GMC Sierra 1500 SLT Automatic 6 Speed
  Added Nov 2024 • 9 Fuel-ups

  Property of texan1955

• 15.6 Avg MPG

• Larry's GMC Sierra Crew Cab

  2014 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2016 • 483 Fuel-ups

  Property of lundrider

• 15.7 Avg MPG

• Sierra 1500 6.2L

  2014 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 6 Speed
  Added Sep 2020 • 174 Fuel-ups

  Property of srquill

• 15.0 Avg MPG

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• ...
• 12
• 13
• »