Based on data from 64 vehicles, 5,642 fuel-ups and 1,545,489 miles of driving, the 2019 GMC Terrain gets a combined Avg MPG of 25.00 with a 0.14 MPG margin of error.

Any Engine Type 1.5L L4 GAS (27) 1.6L L4 DIESEL (3) 2.0L L4 GAS (34) Any Body Style Sport Utility (21) Any Submodel SL (1) SLE (20) Denali (20) SLT (23)

Below you can see a distribution of the fuel-ups with 246 outliers (4.18%) removed.

Following shows the average MPG of each of the 64 vehicles in the system.

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• Gmc Denali

  2019 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed Sport Utility
  Added Mar 2025 • 4 Fuel-ups

  Property of Npesco86

• 26.1 Avg MPG

• My Terrain

  2019 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
  Added Nov 2022 • 131 Fuel-ups

  Property of lindseylindgren

• 22.4 Avg MPG

• My Terrain

  2019 GMC Terrain SLE 1.6L L4 DIESEL Automatic 6 Speed
  Added Feb 2020 • 221 Fuel-ups

  Property of PrinceXizor

• 34.8 Avg MPG

• My Terrain

  2019 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
  Added Apr 2019 • 281 Fuel-ups

  Property of RussT74

• 26.3 Avg MPG

• My Terrain

  2019 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed
  Added May 2019 • 502 Fuel-ups

  Property of cristela

• 25.3 Avg MPG

• My Terrain

  2019 GMC Terrain SLT 1.5L L4 GAS Automatic 6 Speed
  Added May 2019 • 282 Fuel-ups

  Property of tally1028

• 19.2 Avg MPG

• 2019 Terrain

  2019 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed Sport Utility
  Added Sep 2020 • 135 Fuel-ups

  Property of Turboclownfish

• 22.2 Avg MPG

• Silver Fox

  2019 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed Sport Utility
  Added Aug 2018 • 73 Fuel-ups

  Property of GF09

• 24.8 Avg MPG

• My Terrain

  2019 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed
  Added Apr 2024 • 70 Fuel-ups

  Property of 6InARowMakeItGo

• 26.2 Avg MPG

• Terrian

  2019 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Jan 2025 • 112 Fuel-ups

  Property of Jeffers62

• 29.0 Avg MPG

• My Terrain

  2019 GMC Terrain SLE 2.0L L4 GAS Automatic 9 Speed Sport Utility
  Added Mar 2019 • 327 Fuel-ups

  Property of RJinOV

• 27.8 Avg MPG

• Terrain

  2019 GMC Terrain SLT 1.6L L4 DIESEL Automatic 6 Speed Sport Utility
  Added Jan 2022 • 259 Fuel-ups

  Property of JoshuaMB

• 34.2 Avg MPG

• My Terrain

  2019 GMC Terrain SLT 1.5L L4 GAS Automatic 6 Speed
  Added Jan 2022 • 316 Fuel-ups

  Property of cmmitchel

• 26.5 Avg MPG

• My Terrain

  2019 GMC Terrain SLE 1.5L L4 GAS Automatic 6 Speed
  Added Oct 2024 • 40 Fuel-ups

  Property of jeepgirl2

• 31.6 Avg MPG

• Trixie

  2019 GMC Terrain Denali 2.0L L4 GAS Automatic 9 Speed
  Added Sep 2018 • 142 Fuel-ups

  Property of sinman65

• 25.2 Avg MPG

• 2019 Terrain

  2019 GMC Terrain SLT 2.0L L4 GAS Automatic 9 Speed
  Added Jul 2020 • 180 Fuel-ups

  Property of John733

• 22.7 Avg MPG

• 2019 Gmc Terrain

  2019 GMC Terrain SLT 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Apr 2019 • 184 Fuel-ups

  Property of bmp4free

• 23.3 Avg MPG

• GMC Terrain

  2019 GMC Terrain SLE 1.5L L4 GAS Automatic 9 Speed Sport Utility
  Added Dec 2022 • 64 Fuel-ups

  Property of srbass88

• 27.3 Avg MPG

• GMC Terrain 2019

  2019 GMC Terrain SLE 2.0L L4 GAS Automatic 9 Speed Sport Utility
  Added Dec 2018 • 11 Fuel-ups

  Property of rickgoddard

• 129.0 Avg MPG

• My Terrain

  2019 GMC Terrain SLE 1.5L L4 GAS Automatic 6 Speed
  Added Nov 2020 • 4 Fuel-ups

  Property of genem

• 27.0 Avg MPG

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