Based on data from 27 vehicles, 856 fuel-ups and 197,003 miles of driving, the 2020 Subaru WRX STI gets a combined Avg MPG of 19.48 with a 0.21 MPG margin of error.

Any Engine Type 2.5L H4 GAS (25) H4 GAS (1) Any Body Style Sedan (4) Any Submodel Sport-tech (1) STI (2) Limited (8) Base (16)

Below you can see a distribution of the fuel-ups with 18 outliers (2.06%) removed.

Following shows the average MPG of each of the 27 vehicles in the system.

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• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Apr 2020 • 131 Fuel-ups

  Property of tcole193

• 19.3 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added May 2020 • 29 Fuel-ups

  Property of Scotsch

• 17.9 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Jun 2020 • 42 Fuel-ups

  Property of JedFromAZ

• 18.0 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Feb 2021 • 17 Fuel-ups

  Property of adubs81

• 20.5 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Jul 2020 • 57 Fuel-ups

  Property of basedern

• 15.6 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Nov 2020 • 28 Fuel-ups

  Property of warrinerjake99

• 21.2 Avg MPG

• Dubaroo

  2020 Subaru WRX STI H4 GAS Manual 6 Speed
  Added Nov 2019 • 49 Fuel-ups

  Property of alexzaxp

• 16.5 Avg MPG

• PSD STI

  2020 Subaru WRX STI STI
  Added Nov 2020 • 6 Fuel-ups

  Property of jchop

• 17.7 Avg MPG

• WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Jan 2020 • 51 Fuel-ups

  Property of Batman122ci

• 18.3 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Apr 2021 • 18 Fuel-ups

  Property of PaoloB

• 20.7 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Mar 2020 • 36 Fuel-ups

  Property of chaosalys

• 18.6 Avg MPG

• My WRX STI 2020

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Mar 2020 • 80 Fuel-ups

  Property of LOD-squa

• 21.5 Avg MPG

• Sully II

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Jun 2020 • 32 Fuel-ups

  Property of russb4

• 20.5 Avg MPG

• 2020 STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed Sedan
  Added Mar 2020 • 61 Fuel-ups

  Property of amdpowered

• 22.7 Avg MPG

• 2020 Subaru WRX STI

  2020 Subaru WRX STI STI 2.5L H4 GAS Manual 6 Speed Sedan
  Added Apr 2021 • 7 Fuel-ups

  Property of Hondajunkie

• 15.8 Avg MPG

• Keiko

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Feb 2020 • 27 Fuel-ups

  Property of cmilktoast

• 17.0 Avg MPG

• WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Nov 2020 • 27 Fuel-ups

  Property of mchardt

• 18.2 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Feb 2020 • 19 Fuel-ups

  Property of savafan1

• 19.6 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Sport-tech 2.5L H4 GAS Manual 6 Speed
  Added Feb 2021 • 16 Fuel-ups

  Property of Stealthman1000

• 20.0 Avg MPG

• STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Mar 2021 • 13 Fuel-ups

  Property of BSuk

• 21.0 Avg MPG

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