EJ257 Turbo / EJ25 / EJ-Petrol / Flat-four / Subaru

Explore the EJ257 Turbo Engine Technical Specifications

The car engine is the heart of any vehicle, converting fuel into mechanical energy that powers the car's movement. It's important to understand that there are different types of car engines, each with its own advantages and disadvantages. Gasoline engines are the most widely used and offer high power output and smooth operation. Diesel engines are more fuel-efficient and are commonly used in trucks and heavy-duty vehicles. Hybrid and electric engines offer increased fuel efficiency and reduced emissions, making them popular choices for eco-conscious drivers.

In addition to engine types, there are also different engine displacements available. Small engines offer increased fuel efficiency but may lack power and acceleration capabilities. Medium engines offer a balance of power and efficiency, while large engines provide high power output and acceleration but consume more fuel and produce higher emissions. Choosing the right engine displacement is important and depends on factors such as the intended use of the vehicle, personal preference, and budget.

• Engine Manufacturer

  Subaru

• Displacement

  2.5L I-4

• Engine Family

  EJ

• Engine Series

  EJ25

• Vehicles using EJ257 Turbo engine

  • 2021 Subaru WRX STI
  • 2020 Subaru WRX STI
  • 2019 Subaru WRX STI
  • 2018 Subaru WRX STI
  • 2017 Subaru WRX STI
  • 2016 Subaru WRX STI
  • 2015 Subaru WRX STI
  • 2014 Subaru Impreza
  • 2013 Subaru Impreza
  • 2012 Subaru Impreza
  • 2011 Subaru Impreza
  • 2010 Subaru Impreza
  • 2009 Subaru Impreza
  • 2008 Subaru Impreza
  • 2007 Subaru Impreza
  • 2006 Subaru Impreza
  • 2005 Subaru Impreza
  • 2004 Subaru Impreza

• Fuel Type

  Petrol

• Horsepower

  305 HP

• Torque

  290 lb/ft

Technical Liquids

Technical liquids such as engine oil and coolant are critical components in ensuring the proper functioning and longevity of a car engine. Engine oil lubricates the moving parts of the engine, reducing friction and wear, while coolant regulates engine temperature by absorbing heat and transferring it to the radiator for dissipation.

Regularly monitoring the quantity and quality of these liquids is essential to ensure that the engine operates efficiently and reliably. Engine oil levels should be checked regularly and changed at recommended intervals, as old or insufficient oil can cause engine damage and reduce performance. Coolant levels should also be monitored regularly and replaced according to the manufacturer's recommendations, as low coolant levels can cause overheating and potential engine damage.

• Oil Viscosity

  • Viscosity 5W-30

• Wondering how much oil to put in your engine? Check here:

  • Subaru WRX STI
  • Subaru Impreza

• Coolant Capacity

  7.4 - 8.1 quarts

• EJ257 Turbo Generations

  Predecessors
  • EJ205
  • EJ222
  • EJ251
  • EJ253
  • EJ255 Turbo