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What kind of engine is in a 2012 Subaru Legacy?

The 2012 Subaru Legacy is equipped with a horizontally-opposed "boxer" engine, a signature feature of Subaru vehicles. Specifically, the 2012 Legacy comes standard with a 2.5-liter four-cylinder boxer engine.


Engine Details


The 2.5-liter four-cylinder boxer engine in the 2012 Subaru Legacy has the following key specifications:



  • Displacement: 2.5 liters (2,457 cc)

  • Configuration: Horizontally-opposed "boxer" four-cylinder

  • Horsepower: 170 hp @ 5,600 rpm

  • Torque: 174 lb-ft @ 4,100 rpm

  • Transmission: Standard 6-speed manual or optional Lineartronic continuously variable transmission (CVT)


The boxer engine design, where the pistons move horizontally instead of vertically, provides a lower center of gravity and more balanced weight distribution in Subaru vehicles. This contributes to the Legacy's responsive handling and all-wheel drive capability.


Engine Options


In addition to the standard 2.5-liter four-cylinder, the 2012 Subaru Legacy was also available with an optional 3.6-liter six-cylinder boxer engine. This larger engine produced 256 horsepower and 247 lb-ft of torque, providing more power and acceleration for drivers who needed it.


Overall, the 2.5-liter four-cylinder boxer engine was the most common and popular choice for the 2012 Subaru Legacy, delivering a good balance of power, efficiency, and Subaru's signature all-wheel drive performance.

How can I tell which Subaru engine I have?


Placement isn't enough ej25. And ej20 is just a general term for displacement. So we need to take the next step and figure out what type of throttle body it has. So this engine.



Is 2012 a good year for Subaru Legacy?


Among the 289 owners who provided feedback on the 2012 Subaru Legacy for Kelley Blue Book, consumer sentiment is overwhelmingly positive, with 85% recommending the vehicle.



Is the Subaru 2.5 I engine reliable?


The Subaru 2.5 Turbo Engine is a reliable and powerful engine that has proven itself to be a reliable choice for many car owners. However, as with any engine, it is not without its faults. Common issues include oil starvation, coolant leaks, and head gasket failure.



Do Subaru 2.5 engines have head gasket problems?


Abnormal combustion: Head gasket failure can occur on naturally aspirated 2.5L Subaru engines due to detonation or pre-ignition. It is more common for owners of turbocharged models to experience this type of failure though, due to increased cylinder pressures.



What is the life expectancy of a Subaru 2.5 engine?


They can last forever if you take care of them, even if you abuse it, expect it to go past what you'd expect. At 100k+ once the head gaskets (timing belt etc.) have been replaced and that mess has been fixed, the thing is basically good for another 100-200k.



How can I identify my engine?


The most common way to find out what type of engine your vehicle has is to check your Vehicle Identification Number (VIN). It will likely be located on a stamp on the bottom of your passenger side windscreen and it is a 17 character code including numbers and letters.



What engine does the Subaru Legacy use?


BASE | PREMIUM | LIMITED

ENGINE 2.5L DOHCHORSEPOWER 182 hp
TRANSMISSION Lineartronic® CVTTORQUE 176 lb-ft



How many miles will a 2012 Subaru Legacy last?


200,000 miles
Here's a general overview of the lifespan of popular Subaru models: Legacy: The Subaru Legacy is a midsize sedan known for its reliability and durability. With proper maintenance, Legacy models can easily last well beyond 200,000 miles, providing years of dependable service.



Why did Subaru discontinue the Legacy?


Subaru announced that the Legacy sedan will be removed from its lineup following the 2025 model year. The company cited a market that is shifting towards crossovers and SUVs as the reason for the Legacy's death. Sales of the Legacy have been on the decline, with just 25,510 units finding homes last year.



What engine is in a 2.5 i Subaru Legacy?


The 2010 Legacy 2.5i models are powered by a revised 2.5-liter 4-cylinder Boxer engine, teamed for the first time to a new 6-speed manual transmission or the available new Lineartronic CVT with 6-speed manual mode. The CVT is standard in the Legacy 2.5i Limited.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.