Since 2008, the Gunma Oizumi Plant has been producing the 3.6-liter Subaru EZ36D engine, also known as EZ36, which powers the company’s most well-known models, including the Tribeca, Legacy, and Outback. He was given a reinforced cylinder block with 1.5 mm thick cast-iron liners inside. New cylinder heads with dual AVCS variable valve timing systems on the intake and exhaust camshafts covered the block.

The EZ30 engine is another part of the EZ line.
The engine was mounted on:
- Subaru Legacy 5 (BM) in 2009 – 2014;
- Subaru Legacy 6 (BN) in 2014 – 2019;
- Subaru Outback 4 (BR) in 2009 – 2014;
- Subaru Outback 5 (BS) in 2014 – 2020;
- Subaru Tribeca 1 (WX) in 2008 – 2014.
Specifications
| Start of production | 2008 |
| Displacement, cc | 3629 |
| Fuel system | injector |
| Power output, hp | 250 – 260 |
| Torque output, Nm | 350 |
| Cylinder block | aluminum H6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 92 |
| Piston stroke, mm | 91 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | three chains |
| Phase regulator | Dual AVCS |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.3 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Subaru Tribeca 2010) — city — highway — combined |
16.2 9.0 11.6 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 185 |
Disadvantages of the EZ36 engine
High fuel consumption and frequent oil leaks are the network’s most frequent complaints; overheating brought on by another cooling system issue comes in second;
This is where the tensioner fails due to cheap oil, and the timing chain begins to make noise;
Additionally, the fuel pump’s pressure regulator has low reliability;
Oil consumption for waste is frequently already present on runs longer than 150–200 thousand kilometers.
