2019 Subaru Crosstrek Fluid Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil	Subaru Synthetic 0W-20, API SN or ILSAC GF-5	5.1 US qt (4.8 L)
Engine Coolant	Subaru Super Coolant (Blue)	7.6 - 7.9 US qt (7.2 - 7.5 L)
Transmission Fluid (CVT)	Subaru High Torque CVTF	~13.1 US qt (12.4 L)
Front Differential	Gear Oil 75W-90	1.4 US qt (1.3 L)
Rear Differential	Gear Oil 75W-90	0.8 US qt (0.8 L)
Brake Fluid	DOT 3 or DOT 4	As required
Power Steering	N/A (Electric Power Steering)	N/A
Washer Fluid	-30°F Rated	1.1 gal (4.0 L)

Engine Oil

The 2019 Crosstrek requires SAE 0W-20 synthetic engine oil. The oil must meet or exceed API Service SN or ILSAC GF-5 specifications. Using other oil viscosities is not recommended and can hinder the proper operation of the engine's auto start-stop feature. Subaru strongly recommends using their genuine synthetic motor oil, but any brand meeting the required specifications is acceptable.

• Interval: 6,000 miles / 6 months.
• Capacity: 5.1 US qt (4.8 L) with filter change.
• Note: Always verify the level on the dipstick after filling.

Engine Coolant

Subaru specifies their blue Super Coolant, which is a non-silicate, non-amine, non-nitrite, and non-borate based coolant with long-life hybrid organic acid technology (HOAT). Do not mix this with other types of coolant (green, orange, etc.) as this can cause gelling and lead to cooling system blockages.

• Interval: 11 years / 137,500 miles for the first replacement, then every 6 years / 75,000 miles.
• Capacity: 7.6 - 7.9 US qt (7.2 - 7.5 L).
• Note: Use only distilled water when mixing with concentrated coolant.

Transmission Fluid

The 2019 Crosstrek is equipped with a Continuously Variable Transmission (CVT) that requires a specific fluid: Subaru High Torque CVTF (SOA427V1660). The use of any other type of automatic transmission fluid (ATF), including "universal" CVTF, will lead to severe damage, shift quality issues, and potential transmission failure. This is considered a "lifetime" fluid by Subaru, but a drain and fill is recommended by many technicians every 60,000 miles, especially under severe driving conditions.

• Interval: "Lifetime" fluid; consider replacement at 60,000-mile intervals.
• Capacity: Total fill is ~13.1 US qt (12.4 L), but a drain and fill may only replace 5-7 quarts.
• Note: This is not a simple DIY service. There is no dipstick, and checking the level requires a specific procedure involving transmission fluid temperature.

Front & Rear Differential

Both the front and rear differentials on the 2019 Crosstrek use API GL-5 75W-90 gear oil. For vehicles used for towing, it is recommended to replace this fluid more frequently.

• Interval: Inspect every 30,000 miles. Not given a required replacement interval by Subaru, but replacement every 30,000-60,000 miles is good practice.
• Front Capacity: 1.4 US qt (1.3 L).
• Rear Capacity: 0.8 US qt (0.8 L).
• Note: Ensure you are filling the correct plug and not the drain plug.

Brake Fluid

The hydraulic brake system requires DOT 3 or DOT 4 brake fluid. It is crucial never to use DOT 5 (silicone-based) fluid, as it is incompatible with the system's seals. Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time, which can lead to a spongy pedal and corrosion in the brake lines and calipers.

• Interval: Every 30,000 miles or 30 months.
• Capacity: The system requires about 1.0-1.5 quarts for a full flush. Bleed the system until clean fluid appears at each caliper.

Power Steering

The 2019 Subaru Crosstrek uses an electric power steering (EPS) system and therefore does not have a hydraulic power steering pump or use any power steering fluid.

Windshield Washer Fluid

Use a quality washer fluid rated for freezing temperatures appropriate for your climate (e.g., -30°F). Do not use water, as it can freeze and damage the pump and lines.

• Capacity: Approximately 1.1 gallons (4.0 L).

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