Subaru EZ36 3.6L Engine Specs, Problems, Reliability, Oil

Home Subaru EZ36 3.6L Engine Subaru EZ36 3.6L Engine Specs, Problems, Reliability, Info

The EZ36 engine was introduced in 2007 as the new power unit for Subaru Tribeca (the EZ36D version). This engine became the largest displacement engine available for Subaru models. The EZ36 replaced the EZ30 engine in 2009 altogether.

The engine got the reinforced aluminum cylinder block. The cast iron sleeves have reduced thickness 1.5 mm instead 2.0 mm in the EZ30. The cylinder block height is the same 202 mm. The engine has asymmetric connecting rods (125 mm length). These changes allowed getting more significant displacement - from 3.0 to 3.6 liter. The new aluminum cylinder heads have four valves per cylinder and two camshafts. Each camshaft is equipped with variable valve timing system AVCS (Dual AVCS). The combustion chambers in the cylinder heads were redeveloped. The AVLS system, which changes valve lift by engine revs, doesn't exist in this engine. The EZ36 uses three chains. Also, engineers redesigned the exhaust manifolds (headers) and the engine cooling system.

Engine Specs

Manufacturer Gunma Oizumi Plant Production years 2007-2020 Cylinder block material Aluminum Cylinder head material Aluminum Fuel type Gasoline Fuel system Fuel injection Configuration Boxer (Flat-6) Number of cylinders 6 Valves per cylinder 4 Valvetrain layout DOHC Bore, mm 92.0 Stroke, mm 91.0 Displacement, cc 3629 Type of internal combustion engine Four-stroke, naturally aspirated Compression Ratio 10.5 Power, hp 260/6000 Torque, lb ft 247 (335 Nm)/4400 Engine weight 401 lbs (182 kg) Firing order 1-6-3-2-5-4 Engine oil capacity, liter 6.3 Engine oil weight 0W-30, 5W-30, 5W-40, 10W-30, 10W-40

Oil recommendations and capacity may vary depending on the car model, year, and market. Please check the service manual specific to your vehicle!

Oil change interval, mile 9,000 Cars with this engine Subaru Legacy, Subaru Outback, Subaru Tribeca

EZ36 Engine Problems and Reliability

This 3.6-liter engine has almost the same problems, which are characterized the 3.0l EZ30 engine. But we can say what the EZ36 is more reliable than its predecessor. The engine life is about 180,000 miles (300,000 km).

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