Subaru Engines: A Comprehensive Guide to Choosing the Best Engine for Your Car

Subaru is a brand known for producing reliable, high-performance cars with unique features that set them apart from other car manufacturers. One of the most prominent features of Subaru cars is their engines. In this article, we will provide a comprehensive guide to Subaru engines, helping you choose the best engine for your car.

Overview of Subaru Engines and Their History

Subaru has been producing cars since the early 1950s, and their engines have come a long way since then. One of the most notable features of Subaru engines is their Boxer engine design, which features horizontally opposed pistons. This design allows for a lower center of gravity in the car, improving stability and handling.

Subaru engines are also known for their all-wheel-drive system, which provides maximum traction and stability even in tough driving conditions. This feature is especially useful for those living in areas with harsh winters or rough terrain.

Popular Subaru Engines and Their Specs

There are several popular Subaru engines, each with their own unique set of specs. Here are some of the most popular engines and their specifications:

1. Subaru Boxer Engine

The Boxer engine is Subaru’s signature engine. It features horizontally opposed pistons that move in opposite directions, which cancels out the vibrations that other engines experience. This design not only makes the engine smoother but also improves the handling and stability of the car.

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Subaru Boxer engines are offered in a variety of sizes and configurations, ranging from a 2.0-liter four-cylinder to a 3.6-liter six-cylinder engine.

2. WRX Engine

The WRX engine is a turbocharged Boxer engine that is known for its high-performance capabilities. This engine is offered in the Subaru WRX and WRX STI models and provides impressive horsepower and torque. The WRX engine is also paired with a sport-tuned suspension, providing a thrilling driving experience.

3. Subaru Impreza Engine

The Subaru Impreza engine is a versatile engine that provides a balance of power and fuel efficiency. This engine is available as a 2.0-liter four-cylinder engine or a 2.5-liter four-cylinder engine, depending on the model.

4. Subaru Legacy Engine

The Subaru Legacy engine is a smooth and powerful engine that is known for its reliability. This engine is available in a 2.5-liter four-cylinder or a 3.6-liter six-cylinder configuration.

Comparison between Different Subaru Engines and Their Advantages/Disadvantages

Each Subaru engine has its own set of advantages and disadvantages depending on the driver’s needs. Here’s a comparison between some of the most popular Subaru engines:

Engine Advantages Disadvantages
Boxer Engine Smooth, low center of gravity, good handling Less efficient than other engines
WRX Engine High performance, turbocharged, sporty suspension Less fuel-efficient, higher maintenance costs
Impreza Engine Good balance of power and fuel efficiency Less powerful than other engines
Legacy Engine Smooth, reliable, powerful Higher fuel consumption

Reviews from Subaru Car Owners About Their Engines

Subaru car owners have a lot of positive things to say about their engines. Many people praise the Boxer engine’s smoothness and handling, while others love the WRX engine’s high-performance capabilities. The Impreza and Legacy engines also receive high marks for their reliability and balance of power and fuel efficiency.

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Maintenance Tips for Subaru Engines

To ensure that your Subaru engine runs smoothly for years to come, it’s important to follow proper maintenance procedures. Here are some tips for maintaining your Subaru engine:

  • Follow the manufacturer’s recommended maintenance schedule
  • Check your oil level regularly and change the oil every 5,000-7,500 miles
  • Use high-quality gasoline and avoid filling up at low-quality gas stations
  • Keep your air filter clean and replace it when necessary
  • Have your engine tuned up regularly to ensure that it’s running at peak performance


Subaru engines are known for their unique features, reliability, and performance capabilities. When choosing the best engine for your Subaru car, it’s important to consider your driving needs and preferences. Whether you’re looking for a smooth, reliable engine or a high-performance turbocharged engine, there’s a Subaru engine that’s right for you. By following proper maintenance procedures, you can ensure that your Subaru engine runs smoothly for years to come.

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Billy Covington

With a passion for all things automotive, Billy is our go-to expert on Subaru performance upgrades and modifications. He's been featured in several car magazines and blogs, and his extensive knowledge and expertise make him a valuable member of our team. When he's not working on cars, he enjoys playing guitar and writing music.

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