Everything you need to know about Subarus 2.5 engine - vehicle history (2023)

Cathleen V

March 4, 2021

Everything you need to know about Subarus 2.5 engine - vehicle history (1)

When you buy a car, you know that the engine is the heart of the machine. But what are the details behind the Subaru 2.5 engine? With a better understanding of what's under the hood of your vehicle, you'll have a better idea of ​​what your vehicle can do for you.

What are the Subaru 2.5 engine specs?

The Subaru 2.5 engine is a naturally aspirated and turbocharged boxer engine with 16 valves and a volume of 2457 liters. Engine output ranges from 155 to 172.6 hp and 140 to 170 lb-ft, depending on year, make and model.

But what's going on with this engine beyond the simple specs? What questions do owners have? We've pulled information from around the web, including the NHTSA website and extensive vehicle history database, so everything you need to know is here in one convenient place.

History of the Subaru 2.5 engine

TheSubaru 2.5-motor, including a number of different engines, known as Subaru's EJ25 series, EJ25D, EJ251, EJ252, EJ253, EJ254, EJ255, EJ257 and EJ259 were featured in various versions of the Legacy from 1994 to 1996, including the GLS, Legacy Outback.

When developing the Subaru 2.5 engine, the manufacturer moved away from the standard four or V enginefour-level design, whichSubaru calls it a "boxer" engine.. It's called that because the pistons are 180 degrees apart and press together like boxers.

This unique approach to engine design offers many advantages. The flat design allows direct drive from the engine and transmission, improving fuel efficiency, while opposed pistons cause less vibration, reducing the need for additional components found on many V-engines to compensate.

A lower center of gravity ensures better performance and handling. The same feature allows the engine to fall under the passenger compartment rather than into the passenger compartment in the event of an accident, reducing injuries.

Over time, the EJ25D was replaced by the EJ254 and EJ257, which were twin cam models used in limited numbers due to the complex architecture of the flat engine, which made it difficult to replace the spark plugs. Subaru solved the problem by using extended-life platinum spark plugs that allow for less frequent maintenance.

Because of the architecture, many more Subarus got the roof camera configuration, starting with the EJ251. The EJ252 was specifically designed to comply with California emissions laws, while the EJ253 reduced horsepower by 5 horsepower and swapped out the MAP sensor for a MAF sensor.

Which models have the Subaru 2.5 engine?

There are several Subaru modelsit has a 2.5 engine. The 2.5L engine powered the Legacy, including the 1994-1999 EJ25D engine, 1999-2004 EJ251, 2000-2002 EJ252, 2009-2012 EJ253 and 2000-2005 EJ255 .2004 EJ259 .

The Outback also saw several of these engines starting with the 1996-1999 EJ25D, 2000-2004 EJ251, 2000-2002 EJ252, 2003-2002 EJ253 and 2000-2002 EJ2000. Baja used the 2003-2002 EJ251 in 2005 and 2005-up EJ253, with the 2004-2006 Baja Turbo using the EJ255.

The Forester used the EJ25D from 1997 to 1998, then moved to the EJ251 from 1999 to 2004, in 1999 to the EJ253 and again from 2005 to 2010, from 1998 to 2002 to the EJ254, to the T2204 version from 2004. ... until 2013 on EJ220 4 and on ... EJ257 from 2004-2005 in XT version.

The Impreza used the EJ25D engine for just one year in 1998, then moved to the EJ251 from 1998 to 2003, to the EJ253 in 1999 and again from 2004 to 2011, to the EJ255 from 2006 to 2014, and finally to the EJ204 to 2005. .

People ask too

Are Subaru 2.5 engines reliable?

Although Subarus are known for their reliability, their 2.5-liter engine has problemstogether with the 2.0 engine. Head gasket and crankshaft/gasket oil leaks are common, and there is a knocking sound from cylinder four, which is the hottest cylinder in a running engine and the worst to cool.

What is the Subaru 2.5 I engine?

The Subaru 2.5 engine is aboxer motorThis means that the pistons don't move in and out at an angle, but move 180 degrees, like boxers taking turns punching each other. This ensures a quieter ride and better vehicle handling.

What are the Subaru 2.5 engine specs?

TheSubaru 2.5 engine featuresbore 99.5 mm and stroke 79 mm. The 1996 engine has a compression ratio of 9.5, which was upgraded to a 9.7 ratio from 1997 to 1999 and finally to a 10.0 ratio from 2000 onwards. It is capable of delivering between 155 and 170 hp and 140 to 176 lb.-ft. torque.

How long do Subaru 2.5 engines last?

A lots ofowner ratingsThe mentioned Subaru 2.5 engine, which is reliable for years and kilometers. This includes more than ten years of reliable service and more than 200,000 miles with no serious problems with the vehicle.

Are Subaru 2.5 engines interference with engines?

All Subaru 2.5 engines areinterference engines, but what does that mean? An interference engine offers more power with less fuel consumption because the pistons and valves could interfere with each other during operation if the timing is not maintained. If the toothed belt breaks, severe damage can occur.

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owner ratings

Message Edit Write a review

John F in the morning of May 18, 2021

Fun and reliable all-weather 2010 Impreza 5-speed.

So far I have had no problems with the car. Subaru tends to use more oil than other car models, so I check and top it up once a week. In terms of performance, the non-turbo versions are a bit sluggish due to the permanent four-wheel drive. In terms of handling, the car is a dream and the brakes are excellent. The 5-speed manual transmission can be a little squishy, ​​but that's to be expected from Subarus. The car has a premium audio system, heated front seats, hill start assist, air conditioning, electric windows, locks and mirrors, and a sunroof. All in all, after 170,000 miles, I am happy to own and drive this car.

John A March 12, 2021

2006 Subaru Legacy: Great for adventure, but a weird, recurring fad.

This car was great for me. Things have worn out over the years, the piston head in the engine, the bearing in the wheel assembly, some pipes have dried out, and the headlight often burns out faster than it should. This recurring error happens when it's cold or raining after I fill the tank. The cruise control light flashes and the check engine light comes on. Sometimes it turns itself off, sometimes it needs to be reset by a mechanic at the dealership. Regardless, it was difficult to diagnose the problem.

(Video) SUBARU LEGACY - Everything You Need to Know | Up to Speed

Jonathan M in the morning of April 29, 2021

2003 Legacy. Excellent, strong, durable engine! Plus, 4WD is great in the snow!

Very good in the winter, has 250,000 miles which is the biggest reason I have to buy parts left and right in my opinion. Not too many engine parts, engine runs great, but almost all front and rear parts have been replaced. I love the four wheel drive and sunroof. The exhaust also had to be replaced because it was leaking inside the car. Also, the door seals are absolutely terrible and leak badly at medium to high speeds.

Maurisio H. in the morning of August 13, 2021

2010. Outback – The Really Good and the Obvious.

I bought my car used. I had to spend a lot of money to get this vehicle serviced. The entire front suspension was repaired, the axle links replaced, the engine overheated on mine due to a known problem with the 2.5 liter engine that uses terrible gaskets. Otherwise. i love my car i jacked it up and put tires on it and i just love it. The new wheels accentuate the exterior look that this car was aiming for.

George J in the morning of August 13, 2021

2011 Subaru Outback Premium 2.5.

I have had this car towed twice in 9 years. The first related to the platform on which the washing liquid tank stood. The second was related to airbags, which covered many manufacturers. I do all the necessary scheduled maintenance and change the oil every 3000 miles. The vehicle has traveled 110,000 km without major repairs.

Han H July 5, 2021

Low price. All-wheel drive. 2.5-liter four-cylinder engine. Low maintenance fee.

My car is a 2012 Outback 2.5 4WD. I love my car because compared to other brands I use the low price to get an SUV with 4WD. When I go snowboarding in my Subaru, it's pretty quiet and comfortable. And the all-wheel drive makes it through thick water passages with ease, so they can enjoy their journey.

William S June 28, 2021

Having been an automotive technician for ten years, I recommend the 2011 Subaru Outback.

I've only had Subarus, they're extremely reliable. Great extras like heated seats and manual transmissions. The AWD drive ensures that it copes surprisingly well even with 1.20 m of snow. Lots of space for dogs and camping gear. And it works incredibly well in the woods.

Jennifer I in the morning of August 28, 2021

The 2003 Legacy might have been great if we had bought it brand new.

I like the size of the trunk, the seats are comfortable and the seat belts are perfect for a tall person. Unfortunately, the car has had engine problems since purchase. We had the mechanics listen to the timing chain and they are convinced the car will fail. It was difficult to find someone who could work on it.

(Video) The Easiest Car Brand To Own, Maintain, & Repair?! | Subaru, Of Course! Here's Why!

Kevin M June 6, 2021

2012 Subaru Outback 2.5 Ltd. Some issues, but overall a fantastic car.

The 2012 Subaru Outback has a problem with the torque converter manufacturer. My car runs great but the warning lights keep flashing and won't reset. The manufacturer will not fix this issue as it is not a safety issue. Otherwise, my 2012 Subaru Outback runs great. I have covered over 260,000 miles.

Samuel L in the morning of September 23, 2021

The 2006 Subaru Impreza is excellent.

The Subaru Impreza Outback is a great car. I don't know why it's called the Outback because it's really just a non-turbo WRX so it drives just as well as a WRX. The reliability of the Impreza Outback is great, the Boxster engine is extremely reliable and has an excellent gearbox.

Alexis H in the morning of May 12, 2021

The 2003 Legacy is small but roomy. It runs great on gas.

I like the four wheel drive and how much it helps control the vehicle on ice and snow. I like that it's unobtrusive, but still has room for everything I need. I don't like the fact that I have to replace the gasket in the engine to prevent a catastrophic oil leak.

Laura S in the morning of August 26, 2021

Advantages and disadvantages of Subaru Legacy 2011.

The car runs very quietly. I had almost no problems with the engine. The relationship is amazing. I have over 100,000 miles on the car and it still runs great! The only drawback is that my brake lights and headlights go out quite often. I have to change my headlights about twice a year.

Jeannine C July 22, 2021

I highly recommend the 2011 Subaru Legacy.

We had engine trouble when we first got it after about 130,000 miles, but it was still under warranty so luckily we didn't have to pay for it. Otherwise, no problem. It was a great family car for us. I definitely recommend Subaru to everyone.

Jordan J March 30, 2021

The 2003 Subaru Impreza is an ideal car for someone on a budget.

I recently had a problem with my engine. My alternator is broken. This is causing my battery to lose power. The starter was the problem. Other than these issues, this car is fun to drive. Grip is great and the power is there.

(Video) Don't Get Burned! The Most Important Thing To Check When Buying A Used Subaru!

i G June 6, 2021

I love the 2006 Subaru Impreza

It is mostly reliable. I have over 130,000 on my car. It's comfortable. My only complaint is that the rear seats do not fold down. This makes it difficult to fit something half the size in the trunk.

Jordan G in the morning of May 13, 2021

The reliable 2006 Subaru Impreza will get you where you need to go

My Subaru has a manual transmission and can go about 400 miles on one tank of gas. It has an excellent stereo, air conditioning and heating work very well and it is a small car, ideal for tight parking.

Michelle Y in the morning of September 11, 2021

The heritage is from 2005 and was bought used.

I like that it gets decent gas mileage, it's not a particularly ugly car and it has upholstered seats. I don't like that the engine sometimes seems to struggle more than it should.

Jakob F in the morning of April 17, 2021

2003 Legacy - The safest, most affordable choice for the Michiganman who wants to survive the winter.

I drive a traditional luxury Subaru model. Despite the car being a smaller sedan with a smaller engine, it gets decent fuel economy and four-wheel drive makes it a winter must-have.

Sheridan H July 31, 2021

Excellent value for money and a durable car. 2007 Legacy

I like the symmetrical all-wheel drive. I like that the front of the engine faces the front of the car and not to the side where you can't reach the front of the engine.

This r in the morning of April 20, 2021

A 2011 Subaru Legacy had engine problems

The air conditioning in the car does not work and I had frequent problems with the engine, but all in all it was a very good daily driver. Bought used with about 150,000 km, works and drives well.

(Video) Subaru Just Changed the Game with This New Engine

Jessica G June 24, 2021

Shortly after purchasing the 2003 vintage, the check engine light came on.

The biggest problem I had was the check engine light because of the sensor, but I read that was common for my make and year of car.

Carla S July 23, 2021

The reliable, long-lasting 2010 Impreza

No problem with the engine. I braked many times, but also drove over 150,000 miles (mostly commuting).

Christian L in the morning of May 13, 2021

Repairs are expensive, but it's worth it for a great car.

The AWD system is amazing. The 2005 Impreza has a known head gasket problem that requires an expensive repair. A reliable vehicle.

Ava M. March 10, 2021

2011 Subaru Legacy Review.

I love this car because the engine is very quiet and there is not much traffic noise.

Michael C July 9, 2021

The previous model from 2006 drives great, is very fast, comfortable and looks great.

It has 143,900 and the engine has been overhauled. Now it works perfectly.

Cathleen V

(Video) Learn About Subaru Boxer Engine Technology

Cathleen V is an excellent freelance writer covering current automotive issues from a transmission perspective. Whether it's the economy of the Mercedes-Benz A-Class and the durability of the Jeep, or the capabilities of the Challenger Hellcat and Tesla semi, you'll discover great information and research.

  • Article
  • Everything you need to know about Subarus 2.5 engine


Is the Subaru 2.5 L engine a good engine? ›

Generally speaking, a Subaru 2.5 engine has the ability to run between 250,000 and 300,000 miles before needing any kind of significant auto maintenance or repair. Since most drivers average around 14,000 miles per year, this would mean that a Subaru 2.5 engine could conceivably run for over two decades.

What years did Subaru make the 2.5 engine? ›

There are several Subaru models that feature a 2.5 engine. The start of the 2.5 engine was the Legacy, including the EJ25D engine from 1994-1999, EJ251 from 1999-2004, EJ252 from 2000-2002, EJ253 from 2009-2012, EJ255 from 2005-2012, EJ257 from 2005-2006 and the EJ259 in 2004.

What is the difference between Subaru 2.5 and 2.5 I engine? ›

Best Answer. 2.5i is essentially a trim level. It implies the 2.5 liter (or 2.5L) naturally aspirated engine is used. 10 people think this is helpful.

What is the name of the Subaru 2.5 engine? ›

Subaru FB engine

The FB-series (initially available as naturally-aspirated engines in 2.5 and 2.0 litre displacements) is the first new generation of boxer engine since the EJ-series. Subaru announced details of the FB engine on 23 September 2010.

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 mileage do Subarus start having problems? ›

A car with many miles on it is more likely to break down badly, costing a lot of money and sometimes making it worthless. In short, between 150 and 200 thousand miles is when most Subarus reach its first mileage limit. After that, the limit can be raised to 300,000 miles with major maintenance.

What Subaru has a Toyota engine? ›

It is used in the Subaru BRZ, and is identified by a Toyota engine family code known as the 4U-GSE, which is installed in the Toyota 86 and the Scion FR-S.

Are Subaru engines made by Toyota? ›

Subaru cars, trucks, and SUVs are currently manufactured by none other than Subaru itself, as the company is the automotive division of Subaru Corporation.

How many horsepower is a 2.5 Subaru motor? ›

2.5 liter 4 cyl DOHC turbocharged engine w/ 305 hp and 290 lb-ft torque [STI]

Do Subarus have timing chains or belts? ›

While most of the very latest Subaru models feature a permanent metal timing chain, older Subaru models and the ultra-high-performance Subaru WRX STI feature a rubberized timing belt. Just like rubber accessory belts under the hood, the timing belt may stretch and crack over time.

How much oil does a 2.5 Subaru engine take? ›

For the 2.5L 4-cylinder engine, the capacity is 5.1 quarts; for the 3.6L 6-cylinder engine, the capacity is 6.9 quarts. Again, you'll want to check the level to make sure you don't have too much or not enough oil.

What rating of gasoline is best for Subaru with 2.5 liter engine? ›

With the exception of performance vehicles, all other Subaru models are designed to run on 87 octane.

Who builds Subaru engines? ›

The Subaru six-cylinder engines are a series of flat-6 engines manufactured by Subaru, a division of Fuji Heavy Industries, made in three distinct generations.

Are Subaru engines Japanese? ›

Subaru (スバル) (/ˈsuːbəruː/ or /sʊˈbɑːruː/; Japanese pronunciation: [ˈsɯbaɾɯ]) is the automobile manufacturing division of Japanese transportation conglomerate Subaru Corporation (formerly known as Fuji Heavy Industries), the twenty-first largest automaker by production worldwide in 2017.

What does 2.5 I Subaru engine mean? ›

A 2.5i engine comes equipped with an i-active valve lift system, which causes the engine to automatically respond to atmospheric and driving conditions to continuously perform at its highest efficiency.

What year did Subaru fix gasket issue? ›

Subaru is aware of the head gasket issues and in 2014 began outfitting all their models with different head gaskets that have rectified the issue. Pro-Tip: Before your factory warranty expires, it's a good idea to have your Subaru completely checked out to ensure everything is working the way it should.

At what mileage do Subaru head gaskets fail? ›

The head gaskets on your Subaru will typically last around 100,000 miles, depending on the year and model you own. You may also need your head gaskets replaced if you notice that your vehicle is running rough or your engine oil develops a milky color.

What year did the head gasket go bad on Subaru? ›

A number of Subaru models are affected, however the most common failures include the 2.5 Liter SOHC engine used in the late 1999-2004, Forester, Impreza, Outback and Legacy. Signs and symptoms of engine head gasket failure include: Engine overheating.

Can a Subaru last 500000 miles? ›

The average car can last anywhere from 150,000 to 250,000 miles in its lifetime. However, there are reports of Subaru Foresters lasting up to 500,000 miles if they are specially taken care of. This is somewhat of a norm when it comes to Subaru, as 96% of the cars they sold in the last decade are all still on the road.

Do Subarus last longer than Toyotas? ›

And, Toyota was awarded the most reliable brand at the 2021 Auto Trader New Car Awards. Also, Toyota's can last well past 300,000 miles (think of the million-mile Tundra), while Subaru typically lasts around 200,000 miles.

Which Subarus have engine problems? ›

Although Subaru has been challenged with engine issues, most of the issues were isolated to a few engines, namely the EJs that were in the Impreza, Forester, Legacy, Outback and Baja models between 1996 and 2005. The latest Subaru boxer engines are part of the FB series boxer engines.

What is better Subaru or Toyota? ›

Both Subaru and Toyota have a reputation for durability and practicality that make them a great choice for families and commuters. However, for the most part, Toyotas tend to have slightly higher reliability ratings than Subaru cars.

What year did Toyota buy Subaru? ›

Toyota first took a stake in Subaru in 2005 and the move is part of a plan of spreading its bets. The Japanese carmaker, Volkswagen AG and other auto companies have been forging partnerships as they face an uncertain future, with new technologies and business models disrupting the $2.23 trillion global auto industry.

How much of Subaru is owned by Toyota? ›

As of March 31, 2020, Subaru Corporation's largest shareholder was Toyota Motor Corporation, owning 20.02 percent of issued shares. The largest group among shareholders were financial institutions. Established in 1953, Subaru Corporation is a Japanese motor vehicle and aerospace manufacturer headquartered in Tokyo.

What does the word Subaru mean in Japanese? ›

“SUBARU” signifies a Japanese word meaning “unite,” as well as a term identifying a cluster of six stars, which the Greeks called the Pleiades – part of the Taurus constellation. According to Greek mythology, Atlas' daughters turned into this group of stars.

Which Subarus are made in USA? ›

(SIA) is an automobile assembly plant in Lafayette, Indiana, which began as Subaru-Isuzu Automotive, Inc., a joint venture between Subaru Corporation and Isuzu Motors Ltd. Today, the plant is a wholly owned subsidiary of Subaru Corporation which produces the Ascent, Impreza, Legacy and Outback models.

Are Subarus expensive to repair? ›

While Subarus are certainly not the cheapest cars on the market, they are also far from the most expensive. In fact, the average Subaru owner spends about $617 per year on repairs and maintenance. This is actually slightly above the average for domestic makes and models.

What are the disadvantages of a boxer engine? ›

Boxer Engine Disadvantages
  • Its wide size makes it somewhat more difficult to work on, especially in tight quarters.
  • As a result of its position, maintenance and repairs are usually higher in cost, in part because it takes mechanics longer to do routine work, like changing spark plugs.
Jun 8, 2022

Where is the Subaru 2.5 engine made? ›

Subaru makes its engines in its two manufacturing plants located in Gunma, Japan and Lafayette, Indiana. Subaru is one of the largest automobile manufacturers in the world. Here are four of its most popular cars: Outback.

Why does Subaru still use boxer engines? ›

Smoother operation: Because the pistons are horizontally opposed, their firing motions cancel out, resulting in less vibration. And unlike inline engines, boxer engines don't require special parts to counteract vibration, reducing cost and weight.

What is the average cost to replace a timing belt Subaru? ›

Shopping around to get a few quotes is your best bet to get the best deal, but you can expect to pay anywhere from $409 to $919 (including parts and labor).

What happens if a timing belt breaks on a Subaru? ›

Timing Belts Have Extra Importance on Interference Engines

In a non-interference engine, a broken timing belt simply means that the engine will stop. In interference engines, improper timing can lead to a piston striking a valve.

What are symptoms of a timing chain going bad on a Subaru? ›

Other signs of a malfunctioning Timing Belt (or bad timing chain) may include ticking or clanking noises coming from the front of the engine, the Check Engine light coming on, and excessive engine vibrations.

How much oil do I need for 2.5 gallons of gas? ›

This means you'll want to add 3.2 oz of oil to every gallon of gasoline.

What oil does a Subaru 2.5 Turbo take? ›

Subaru Outback Oil 0W20 Synthetic.

How many quarts of oil does a 2.5 liter engine take? ›

Capacities and Specifications - 2.5L
Engine oil (with oil filter).5.7 qt (5.4 L)
Engine coolant.7.2 qt (6.8 L)
Brake fluid.Between MIN/MAX on brake fluid reservoir
Automatic transmission fluid.*9.0 qt (8.5 L)
5 more rows

What is the best gas mileage for a Subaru? ›

The Subaru vehicle with the highest mpg ratings is the 2022 Subaru Impreza, which offers up to 36 highway mpg and 28 city mpg. Wondering which new Subaru SUV has the best gas mileage? The 2021 Subaru Crosstrek returns up to 34 highway mpg to help you conquer all of your adventures.

Why do Subarus need premium gas? ›

However, the engines found in the Subaru BRZ, the Subaru WRX, and the Subaru WRX STI are built for higher compression with a powerful turbocharger -- as a result, regular fuel can be problematic in these engines. Instead, premium gas is required.

Does premium gas last longer? ›

No, premium gas does not last longer than regular gasoline in a fuel tank. A car owner might only consider the longevity of a car's gas if the vehicle has been sitting unused for an extended period.

Does Subaru break in motors at the factory? ›

The first 1,000 miles you put on your new Subaru are the ones you want to be mindful of. During those first 1,000 miles you truly break in the elite flat BOXER® engine tucked under the hood of your ride.

Can Subaru engines be rebuilt? ›

A Subaru engine rebuild specialist will remove the old engine and completely disassemble it. Each part gets inspected and cleaned, with any damaged parts getting replaced. The engine will get rebuilt with new seals, gaskets, and lubricants.

What Subaru engine is most reliable? ›

The Subaru 2.5L engine can be very reliable and is very capable of outlasting the vast majority of engines with 200,000–300,000 miles being common and even higher possible. Many claim they will all blow head gaskets but this is not the case. I won't lie because it is a known problem but not every engine experiences it.

What is the Subaru's motto? ›

The Subaru Love Promise is our vision to show love and respect to all people at every interaction with Subaru. Together with our retailers, we are dedicated to making the world a better place.

How do I know if my Subaru is made in Japan? ›

First position: country of origin. You can find the world manufacturer identifier (WMI) by looking at the first three digits. The first character is the country of origin for your Subaru. The country of origin will either be Japan or the US.

Which Subaru is built in Japan? ›

If you're looking for where larger Subarus are made, just look a few blocks south of Subaru-chō. The Yajima plant builds the Legacy, Forester, and Outback, in addition to further Imprezas and XVs. More than 3,000 employees work at this location to feed the intense demand for these most mainstream of Subaru offerings.

What does the I symbol mean in a Subaru? ›

That symbol is just there to tell you that Subaru Intelligent DRIVE, or SI-DRIVE, is engaged in Intelligent Mode.

What is the difference between Subaru 2.5 and 2.5 i? ›

Best Answer. 2.5i is essentially a trim level. It implies the 2.5 liter (or 2.5L) naturally aspirated engine is used. 10 people think this is helpful.

How much horsepower does a 2.5 liter Subaru engine have? ›

2.5 liter 4 cyl DOHC turbocharged engine w/ 305 hp and 290 lb-ft torque [STI]

Are Subaru Legacy 2.5 I reliable? ›

Like many Subaru models, the Legacy is a fairly reliable vehicle. However, there are several reliability issues of the Legacy that any potential buyer should know: Excessive oil consumption: Several model years of the Legacy have struggled with excessive oil consumption.

Does Subaru 2.5 Turbo engine require premium gas? ›

However, the engines found in the Subaru BRZ, the Subaru WRX, and the Subaru WRX STI are built for higher compression with a powerful turbocharger -- as a result, regular fuel can be problematic in these engines. Instead, premium gas is required.

Which Subaru engine has the best mpg? ›

What Are the Top Subaru MPG Ratings?
Subaru ModelHighway MPG Ratings
2022 Subaru Outback33
2022 Subaru BRZ33
2022 Subaru Ascent27
2021 Subaru WRX27
4 more rows

What is the gas mileage on a 2.5 L Subaru Outback? ›

2022 Subaru Outback Gas Mileage: 33/26 mpg city/hwy.

What is the difference between the 2.0 and 2.5 Subaru engine? ›

The 2022 Crosstrek Sport or Limited with the 2.5-liter engine comes with 182 horsepower and 176 pound-feet of torque. It has 30 more horsepower than the 152 horsepower and 145 lb-ft of torque from the 2022 Crosstrek's 2.0-liter engine. Check out the 2022 Crosstrek model guide here.

What is the best year of the Subaru Legacy? ›

For the most reliable Subaru Legacy year in this lineup, we recommend picking up the 2006 and 2007 model years due to their excellent reliability ratings and fuel economy. Both 2006 and 2007 Subaru Legacy models received the “Seal of Awesome” award from CarComplaints.com.

Are second hand Subarus reliable? ›

Subarus are reliable cars, versatile and offer a wide range of customization with new purchases. However, they are also tremendously valuable as preowned purchases. If you're looking for a great brand of used car to buy, Subaru should definitely make your list of top automakers.


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