Based on data from 36 vehicles, 3,176 fuel-ups and 725,945 miles of driving, the 2017 Subaru WRX STI gets a combined Avg MPG of 18.66 with a 0.14 MPG margin of error.

Any Engine Type 2.5L H4 GAS (36) Any Body Style Sedan (14) Any Submodel Sport (1) Sport-tech (1) Limited (12) Base (22)

Below you can see a distribution of the fuel-ups with 37 outliers (1.15%) removed.

Following shows the average MPG of each of the 36 vehicles in the system.

• 1
• 2
• »

• STi

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed Sedan
  Added Jun 2016 • 36 Fuel-ups

  Property of rmbrady

• 20.7 Avg MPG

• My WRX STI

  2017 Subaru WRX STI Limited 2.5L H4 GAS Standard 6 Speed
  Added Sep 2016 • 165 Fuel-ups

  Property of GeorgeHarhaj

• 17.3 Avg MPG

• Scarlett WRX STi

  2017 Subaru WRX STI Limited 2.5L H4 GAS Standard 6 Speed
  Added Jul 2017 • 57 Fuel-ups

  Property of PauLLoSport

• 24.3 Avg MPG

• My STI

  2017 Subaru WRX STI Limited 2.5L H4 GAS Standard 6 Speed Sedan
  Added Apr 2017 • 34 Fuel-ups

  Property of Lakesidejoe

• 21.5 Avg MPG

• My WRX STI

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed
  Added Jul 2017 • 44 Fuel-ups

  Property of stierzy34

• 21.2 Avg MPG

• My WRX STI

  2017 Subaru WRX STI Limited 2.5L H4 GAS Standard 6 Speed
  Added Apr 2017 • 76 Fuel-ups

  Property of IamtheGTIguy

• 16.6 Avg MPG

• 2017 STI

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed Sedan
  Added Mar 2017 • 31 Fuel-ups

  Property of 2011SEV6

• 17.9 Avg MPG

• My WRX STI

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed
  Added Oct 2016 • 107 Fuel-ups

  Property of bpisadqb11

• 18.0 Avg MPG

• 2017 WRX STI

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed
  Added Jun 2017 • 33 Fuel-ups

  Property of Orlean

• 20.0 Avg MPG

• My WRX STI

  2017 Subaru WRX STI Limited 2.5L H4 GAS Standard 6 Speed
  Added Dec 2017 • 13 Fuel-ups

  Property of chengxuez

• 18.9 Avg MPG

• 2017 Tractor

  2017 Subaru WRX STI Limited 2.5L H4 GAS Standard 6 Speed Sedan
  Added May 2018 • 35 Fuel-ups

  Property of IndySTig

• 18.5 Avg MPG

• Wingless

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed Sedan
  Added Jun 2017 • 61 Fuel-ups

  Property of Bahamut

• 23.4 Avg MPG

• STI

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed
  Added Sep 2016 • 79 Fuel-ups

  Property of hoffcb

• 18.7 Avg MPG

• My WRX STI

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed
  Added Aug 2016 • 11 Fuel-ups

  Property of kevindu

• 19.2 Avg MPG

• Katy

  2017 Subaru WRX STI Sport 2.5L H4 GAS Standard 6 Speed Sedan
  Added Nov 2016 • 8 Fuel-ups

  Property of CFutGwai

• 14.2 Avg MPG

• Sti

  2017 Subaru WRX STI 2.5L H4 GAS Standard 6 Speed Sedan
  Added Aug 2016 • 3 Fuel-ups

  Property of orbitx92

• 20.7 Avg MPG

• 1
• 2
• »