Subaru BRZ · Toyota GR86 / 86 · Scion FR-S

Subaru BRZ, Toyota 86 & GR86 Engine Repair

The 2.0L FA20 in the first-generation BRZ / FR-S / 86 and the newer 2.4L FA24 in the BRZ / GR86 are related but not interchangeable. We assess engine noises, oil-pressure concerns, leaks and internal wear with the actual model and engine in mind.

Spencerport · Rochester areaDiagnosis before repair

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When to investigate

Signs your BRZ, 86 or FR-S engine needs attention

A boxer engine with a ticking accessory, a knock under load and an actual loss of oil pressure may need very different service. Record the engine type, how the car was driven and when the symptom occurs.

Low oil-pressure warning or pressure concern after spirited driving

Deep knocking, metallic debris or a sudden change in engine sound

Oil loss, new leaks or smoke from the exhaust or engine bay

Misfire, rough idle, overheating or a persistent check-engine light

Changes after track use, engine modifications or recent service

First-generation FA20 versus second-generation FA24

First-generation Subaru BRZ and Scion FR-S / Toyota 86 models use a naturally aspirated 2.0L FA20 boxer. The redesigned 2022-and-newer Subaru BRZ and Toyota GR86 use the 2.4L FA24. Engine oiling, components and procedures differ, so year and platform are essential before ordering parts or quoting internal work.

Oil pressure and engine-bearing concerns

Low oil pressure under load or a deep bottom-end knock can be associated with lubrication problems or bearing wear. Suitable checks may include oil level and correct specification, oil and filter inspection, mechanical pressure measurement, and evaluation of any internal damage. A red pressure warning is a reason to shut the engine off, not drive it in for a routine appointment.

FA24 track-use pressure reports: what is known

Instrumented owner testing reported temporary oil-pressure drops during sustained high-load right-hand turns in some FA24-powered BRZ/GR86 cars on track. Those reports deserve consideration for a car that has seen circuit use, but small-sample track testing is not proof that every road-driven FA24 is defective or that a specific failed part caused the loss.

RTV, oil pickup and other possible causes

Excess sealing compound in an oil pickup is one issue discussed among owners; it should not automatically be blamed for every FA24 knock or pressure complaint. Confirm the actual oil-pressure behavior, oiling system and evidence before recommending disassembly or an oil-pan job.

2013 BRZ / FR-S valve-spring recall

Certain 2013 Subaru BRZ and Scion FR-S vehicles were included in an engine valve-spring safety recall. Applicability is VIN-specific, and authorized dealers handle manufacturer recall work. A recall is not the diagnosis for a different model year or an unrelated engine noise.

Rebuilding, internal repair or engine replacement

If damage is found, we can discuss the condition of the crankshaft, bearings and engine assembly, plus the practicality of repair, rebuilding or replacing the complete engine. An inspection should establish the actual failure before planning an expensive repair.

Our diagnostic approach

A BRZ engine plan starts with evidence

Identifying whether the complaint is a pressure warning, bearing noise, combustion misfire or ordinary oil leak avoids replacing parts by reputation.

Confirm first- versus second-generation engine, mileage, modifications, oil service history and the conditions in which a warning or noise occurred.

Use the appropriate tests, such as code and freeze-frame review, external leak inspection, oil and filter examination, compression/leak-down or mechanical oil-pressure testing when indicated.

Discuss what is actually damaged and whether targeted repair, internal engine work or complete replacement is the sensible next step.

Engine-specific information

FA20 and FA24: where the details matter

The BRZ and its Toyota/Scion relatives share key architecture, but generation-specific information keeps the repair scope accurate.

FA20 · first generation

The naturally aspirated 2.0L engine powers earlier BRZ / FR-S / 86 cars. Verify year, modification history and actual mechanical condition.

FA24 · second generation

The naturally aspirated 2.4L powers newer BRZ / GR86 cars. Track-use oil-pressure observations are relevant context, not a substitute for diagnosis.

Recalls and coverage

Some 2013 BRZ/FR-S cars have a valve-spring recall. Check the VIN with the manufacturer or NHTSA before arranging potentially covered repairs.

Helpful information to bring

If you have logged oil-pressure readings, photos of a damaged oil filter, track-use history or an old diagnosis, share them. Do not restart an engine with a red oil-pressure warning or severe knocking.

Manufacturer & technical references

Model, production range and VIN determine bulletin or recall applicability. These sources support research; they do not diagnose a vehicle or promise warranty coverage.

Second-generation engine example

The later 2.4L FA24 has a different layout

The newer Subaru BRZ and Toyota GR86 share the naturally aspirated FA24 family. This real GR86 engine-bay photograph shows the related engine, not a first-generation FA20 or a repair performed at our shop.

Actual FA24D 2.4-liter boxer engine bay photographed in a Toyota GR86, a close Subaru BRZ platform relative

Why the exact generation matters

Parts, oiling layouts and service guidance can differ between the earlier FA20 and later FA24. Ask us about your model year, oil pressure, noise or internal-engine concern before selecting a replacement component or repair approach.

Explore other Subaru boxer engines ↗

Repair options

BRZ / 86 engine service options

Whether your car is daily-driven or used on track, symptoms and confirmed wear—not internet assumptions—determine what repair is appropriate.

FA20 / FA24 engine-noise and oil-pressure diagnosis

Review pressure complaints, engine noises, diagnostic faults, filter condition and evidence of mechanical damage as warranted.

Oil leaks, cooling and running concerns

Investigate leak sources, cooling-system problems, misfires and drivability symptoms with generation-specific checks.

Internal engine repair, rebuilding or replacement

Discuss bearing/crankshaft damage, engine-rebuild feasibility and complete assembly replacement after confirming condition.

Related Toyota/Scion boxer engines

We welcome inquiries for Scion FR-S, Toyota 86 and Toyota GR86 engines sharing the Subaru-developed boxer layout.

When to stop drivingA red oil-pressure warning, severe metallic knocking or overheating can indicate a risk of immediate engine damage. Shut off the engine and discuss towing. Do not assume that adding oil resolves a pressure failure.

Frequently asked questions

BRZ, FR-S and GR86 engine questions

Is my BRZ FA20 or FA24?

The first-generation BRZ uses a 2.0L FA20; the redesigned 2022-and-newer BRZ uses a 2.4L FA24. We confirm model year and engine before recommending work.

Do all 2022+ BRZ and GR86 engines have oil starvation?

No such blanket conclusion follows from the reported track tests. There are documented high-load pressure-drop observations in a small sample, and any individual car needs its own evaluation.

Does RTV automatically cause the oil-pressure problem?

No. RTV debris has been discussed as a possible contributor in some cars, but oil-pressure loss and bearing failures can have multiple causes. Diagnosis must establish the actual problem.

Should I drive a BRZ with rod knock or a red oil-pressure light?

No. Shut the engine down and arrange safe transport. Running it further may increase bearing and crankshaft damage.

Can you also repair the Toyota 86 and Scion FR-S engines?

Yes, contact us with the exact model, year, engine, modifications and problem so we can discuss inspection and repair options.

Tell us what your BRZ or 86 engine is doing

Send the year, model, mileage, any modifications, oil-pressure history and when the noise or warning occurs. We welcome calls and messages; appointments and repair estimates require shop confirmation.