Subaru FB25D engine

The 2.5-liter Subaru FB25D engine has been produced at the Japanese plant of the corporation since 2018 and is practically used in all modern models: Forester, Legacy, Outback, and Impreza. Compared to the previous model, this engine differs in the presence of direct fuel injection. The FB line also includes other engines: FB16B, FB16F, FB20B, FB20D, FB20X, and FB25B.

Technical specifications of the Subaru FB25D 2.5-liter engine.

Exact capacity2498 cm³
Power systemdirect injection
Engine power182 HP
Torque239 nm
Engine blockaluminum H4
Block headaluminum 16v
Cylinder diameter94 mm
Piston stroke.90 mm
Compression ratio12.0
Engine featuresDOHC
Hydraulic compensator. there is no
Timing drivechain
Timing phase adjusterDual AVCS
Turbochargingthere is no
What oils to use4.2 liters 0W-20
Fuel type98
Environmental classEURO 6
Approximate life expectancy250 000 HP

Fuel consumption Subaru FB25D engine

Using the example of the 2021 Subaru Forester with an automatic transmission:
City9.1 litry
Route7.1 litry
Mixed8.1 litry

Engine Overview and Common Failures

The weight of the FB25D engine assembly is 135 kg. The engine number FB25D is located at the junction of the block and the gearbox. This engine has not been installed for a long time, so there is not enough statistical data on breakdowns. Like all direct injection engines, it suffers from carbon build-up on the intake valves. Complaints about oil consumption are often due to ring deposits. The remaining problems are somehow related to oil leaks and occur frequently. Also, once every 100,000 km, you can expect an expensive valve clearance adjustment procedure.

Engine Subaru Fb25d

Subaru
Forester 5 (SK)2018 - CE
Impreza 6 (GU)2023 - CE
Legacy 7 (BW)2019 - CE
Outback 6 (BT)2019 - CE
XV 2 (GT)2020 - 2023
XV 3 (GU)2022 - CE

Engines from the same line as Subaru FB25D engine

See Also

Subaru Ej151 engine

The 1.5-liter Subaru EJ151 petrol engine was produced in Japan from 1992 to 2007 and was installed in several generations of the globally popular Impreza model. The engine served as the basic power unit and had modest specifications. The EJ15 engine lineup also includes the EJ152.

Subaru Ej20g engine

The 2.0-liter turbocharged gasoline engine Subaru EJ20G was produced in Japan from 1989 to 1998 and was installed in versions equipped with turbocharging of popular models such as Legacy, Forester, and Impreza. There are three different designs and tuning levels of this engine. The EJ20T line also includes the following engines: EJ205, EJ206, EJ207, and EJ208.

Subaru FB16B engine

The 1.6-liter Subaru FB16B gasoline engine has been produced in a Japanese factory since 2011 and is installed in popular models of the company, such as the Impreza and XV crossover. This power unit is the smallest and least powerful in its family of engines. The FB line also includes the following engines: - FB16F, - FB20B, - FB20D, - FB20X, - FB25B, and - FB25D.

Subaru FB16F engine

The 1.6-liter Subaru FB16F or FB16DIT engine was produced in Japan from 2014 to 2020 and was exclusively installed in the very popular Levorg sports wagon on the local market. Such an engine is a typical representative of the third generation of turbocharged engines from the company. The FB line also includes engines: FB16B, FB20B, FB20D, FB20X, FB25B, and FB25D.

Audi Bdx engine

The 2.8-liter Audi BDX 2.8 FSI engine was produced by the company's factories from 2006 to 2010 and was only installed in two models of the German group: Audi A6 C6 or Audi A8 D3. This power unit has several counterparts with indexes CCDA, CCEA or CHVA. The following engines also belong to the EA837 line: BDW, CAJA, CGWA, CGWB, CREC and AUK.

Hyundai G4km engine

The 2.5-liter Hyundai G4KM SmartStream 2.5 MPI gasoline engine has been installed since 2019 and is used in the eighth generation of the Sonata model and the fourth generation of the Kia Sorento crossover. This engine belongs to the new Theta III family and is equipped with distributed fuel injection. Theta line: G4KE G4KF G4KG G4KJ G4KK G4KL G4KN G4KR G4KP