2016 Subaru Outback Fluid Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil	ILSAC GF-5 / API SN 0W-20 Synthetic	5.1 qt (4.8L) 2.5L FB25 / 6.9 qt (6.5L) 3.6R EZ36
Engine Coolant	Subaru Super Coolant (Blue)	7.6 qt (7.2L) 2.5L / 8.1 qt (7.7L) 3.6R
Transmission Fluid	Subaru CVT High Torque (Lineartronic HT)	~13.1 qt (12.4L) dry fill
Transfer Case	Gear Oil 75W-90	1.3 qt (1.2L)
Front Differential	Gear Oil 75W-90	1.5 qt (1.4L)
Rear Differential	Gear Oil 75W-90	0.8 qt (0.76L)
Brake Fluid	DOT 3 or DOT 4	As required
Power Steering	ATF (Subaru ATF-HP)	As required
Washer Fluid	Subaru Washer Fluid / any quality blend	~1.0 gal (3.8L)

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Engine Oil

Specification: API SN or ILSAC GF-5 0W-20 synthetic engine oil is the factory-recommended grade for both the 2.5L FB25 4-cylinder and 3.6L EZ36 6-cylinder engines. Using a high-quality synthetic is critical for the longevity of these boxer engines, which tend to run hot and can be susceptible to oil consumption if neglected.

Capacity:

• 2.5L FB25: 5.1 quarts (4.8 liters)
• 3.6R EZ36: 6.9 quarts (6.5 liters)

Notes: Always use a new crush washer on the drain plug to prevent leaks. The OEM part number is 11126AA000. While some owners experiment with slightly thicker oils like 5W-30 in very hot climates, it is not officially recommended by Subaru and may impact fuel economy. Stick with a quality 0W-20 from a reputable brand to meet warranty requirements and ensure proper engine function. Change interval is every 6,000 miles or 6 months.

Engine Coolant

Specification: Subaru Super Coolant (blue) is an ethylene glycol-based, P-OAT (Phosphated Organic Acid Technology) coolant. This is a long-life coolant, and it is critical not to mix it with other coolant types, including older green or universal gold coolants.

Capacity:

• 2.5L FB25: 7.6 quarts (7.2 liters)
• 3.6R EZ36: 8.1 quarts (7.7 liters)

Notes: Mixing coolant chemistries can cause gelling andblockages in the radiator and heater core, leading to expensive repairs. If you are unsure what coolant is in the vehicle, a complete flush is recommended. The factory fill is designed to last 11 years or 137,500 miles for the first interval, with subsequent changes every 6 years or 75,000 miles. Always use distilled water when mixing coolant if using a concentrate.

Transmission Fluid

Specification: For the Lineartronic CVT (Continuously Variable Transmission), only use Subaru High-Torque CVT Fluid (part number SOA748V0200). This is a highly specific fluid engineered for the unique demands of a chain-driven CVT.

Capacity: Approximately 13.1 quarts (12.4 liters) for a complete dry fill. A typical drain-and-fill will replace 6-7 quarts.

Notes: This is not a simple drain-and-fill like a traditional automatic. The fluid level must be checked at a specific temperature (95-113°F) via the fill plug, as there is no dipstick. Using any other type of ATF, including "universal" CVT fluids, is a recipe for catastrophic failure. While Subaru of America has claimed this is a "lifetime" fluid, experienced technicians recommend a drain-and-fill every 60,000 miles to ensure the longevity of the CVT.

Transfer Case Fluid

Specification: API GL-5 75W-90 gear oil.

Capacity: 1.3 quarts (1.2 liters).

Notes: The transfer case on the 2016 Outback is integrated into the transaxle assembly. The fill and drain plugs are located on the passenger side of the transmission housing. This fluid should be changed every 30,000 to 60,000 miles. It is a separate reservoir from the main transmission fluid.

Differential Fluid

Front Differential

Specification: API GL-5 75W-90 gear oil.

Capacity: 1.5 quarts (1.4 liters).

Notes: The front differential is housed within the transaxle. Like the transfer case, the service interval is typically 30,000-60,000 miles. Fresh fluid ensures the longevity of the ring and pinion gears.

Rear Differential

Specification: API GL-5 75W-90 gear oil.

Capacity: 0.8 quarts (0.76 liters).

Notes: The rear differential is a separate unit. The drain and fill plugs are easily accessible on the housing. Ensure the vehicle is level when filling to get an accurate reading. An overfilled differential can blow out axle seals. A simple hand pump makes refilling much easier.

Brake Fluid

Specification: DOT 3 or DOT 4 brake fluid. DOT 4 has a higher boiling point and is a good upgrade if you live in a mountainous area or tow frequently. Do not use DOT 5 (silicone-based) as it is incompatible with the system.

Capacity: As required. A full system flush will typically use 1-2 quarts.

Notes: Brake fluid is hygroscopic, meaning it absorbs moisture from the air. This moisture lowers the boiling point and can cause corrosion in the brake lines and calipers. A full brake fluid flush is recommended every 2-3 years, regardless of mileage.

Power Steering Fluid

Specification: Subaru ATF-HP (High Performance). Yes, it uses automatic transmission fluid, not generic power steering fluid. Using the incorrect fluid can damage the pump and rack.

Capacity: As required. Top-offs are usually minimal unless there is a leak.

Notes: For the 2016 model year, the Outback uses a conventional hydraulic power steering system. Check the fluid level at the reservoir in the engine bay. If the fluid appears dark or smells burnt, a flush is recommended.

Washer Fluid

Specification: Any quality windshield washer solvent. A winter-blend with de-icer is recommended for cold climates.

Capacity: Approximately 1.0 gallon (3.8 liters).

Notes: Using plain water is not recommended as it lacks cleaning agents and can freeze in the winter, potentially cracking the reservoir and lines.

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This reference is intended as a guide. Always verify specifications and capacities in your owner's manual or official service information before performing any maintenance.

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