Based on data from 32 vehicles, 2,785 fuel-ups and 628,231 miles of driving, the 2020 Subaru WRX STI gets a combined Avg MPG of 19.26 with a 0.16 MPG margin of error.

Any Engine Type 2.5L H4 GAS (31) Any Body Style Sedan (7) Any Submodel Sport-tech (1) STI (3) Limited (10) Base (18)

Below you can see a distribution of the fuel-ups with 17 outliers (0.61%) removed.

Following shows the average MPG of each of the 32 vehicles in the system.

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• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Mar 2021 • 85 Fuel-ups

  Property of jpiekar3

• 22.2 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Sport-tech 2.5L H4 GAS Manual 6 Speed
  Added Feb 2021 • 123 Fuel-ups

  Property of Stealthman1000

• 17.9 Avg MPG

• WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Nov 2020 • 126 Fuel-ups

  Property of mchardt

• 18.1 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Nov 2020 • 154 Fuel-ups

  Property of warrinerjake99

• 22.2 Avg MPG

• Keiko

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Feb 2020 • 83 Fuel-ups

  Property of cmilktoast

• 16.9 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Feb 2020 • 115 Fuel-ups

  Property of savafan1

• 20.4 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Feb 2021 • 158 Fuel-ups

  Property of adubs81

• 20.2 Avg MPG

• My WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Apr 2024 • 38 Fuel-ups

  Property of CarissaT

• 19.6 Avg MPG

• My WRX STI

  2020 Subaru WRX STI STI 2.5L H4 GAS Manual 6 Speed
  Added Jun 2022 • 110 Fuel-ups

  Property of sdracer

• 20.1 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Feb 2024 • 83 Fuel-ups

  Property of cmb146

• 18.8 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Jul 2020 • 166 Fuel-ups

  Property of basedern

• 13.1 Avg MPG

• 2020 Subaru WRX STI

  2020 Subaru WRX STI STI 2.5L H4 GAS Manual 6 Speed Sedan
  Added Apr 2021 • 112 Fuel-ups

  Property of Hondajunkie

• 18.4 Avg MPG

• The Subie

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed Sedan
  Added Sep 2021 • 194 Fuel-ups

  Property of Bryguysays

• 21.3 Avg MPG

• Blue WRX STI

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Jan 2021 • 213 Fuel-ups

  Property of HWRX

• 21.1 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed Sedan
  Added Apr 2022 • 57 Fuel-ups

  Property of jlong1989

• 13.8 Avg MPG

• Lancelot

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Oct 2024 • 5 Fuel-ups

  Property of ehaylock

• 23.6 Avg MPG

• 2020 WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added May 2024 • 15 Fuel-ups

  Property of Pumamonster

• 15.2 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Mar 2020 • 103 Fuel-ups

  Property of chaosalys

• 18.8 Avg MPG

• My WRX STI

  2020 Subaru WRX STI 2.5L H4 GAS Manual 6 Speed
  Added Apr 2020 • 339 Fuel-ups

  Property of tcole193

• 17.4 Avg MPG

• Sully II

  2020 Subaru WRX STI Limited 2.5L H4 GAS Manual 6 Speed
  Added Jun 2020 • 92 Fuel-ups

  Property of russb4

• 21.3 Avg MPG

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