Subaru vehicles typically use blue coolant, specifically Subaru Genuine Long-Life Coolant Type 2 in a premixed 50/50 formulation. The color helps identify the fluid at a glance, but always confirm the exact specification in your owner's manual or with a Subaru technician for your model and region.
Color and compatibility in Subaru cooling systems
Blue is the signature color used by Subaru for its Long-Life Coolant Type 2. While blue is the telltale shade, the decisive factor is whether the coolant meets Subaru's Type 2 specification and is appropriate for your engine. Do not mix coolant types or colors unless the manual explicitly allows it.
Color alone isn’t a compatibility guarantee
Some products marketed as blue may meet the same Type 2 standard, but always verify the exact specification on the product label and the Safety Data Sheet. The color should align with the recommended Subaru type, but the specification matters for corrosion protection and proper cooling performance.
Key points to remember about coolant color and compatibility:
- Blue is the typical color for Subaru Genuine Long-Life Coolant Type 2, commonly sold in premixed 50/50 form.
- In some regions or for certain models, the coolant may be blue but still require a specific sub-type or dilution. Always check the owner's manual or service bulletin for your vehicle.
- Color alone cannot guarantee compatibility; always verify the exact coolant specification and avoid mixing types unless approved.
Bottom line: use the correct Subaru-rated coolant and follow the manual. If you’re unsure, consult a Subaru dealership or a qualified technician to confirm the right fluid for your car.
Replacing coolant in a Subaru
When replacing coolant, follow these steps to ensure you use the correct fluid and achieve a proper fill and bleed. The steps assume you are using Subaru-approved blue Long-Life Coolant Type 2 in a premixed formulation unless your manual specifies otherwise.
- Confirm you have the correct coolant: Subaru-approved blue Long-Life Coolant Type 2, premixed unless the manual specifies a concentrate with the correct dilution.
- Allow the engine to cool, then drain the old coolant from the drain plug or radiator drain into a suitable container.
- Optionally flush the cooling system according to manufacturer guidance to remove old coolant and contaminants.
- Refill with the correct coolant until the reservoir reaches the specified level. If premixed, no additional water is needed.
- Start the engine and bleed the cooling system according to Subaru’s procedure to remove air from the system; monitor for consistent temperature and check for leaks.
- Cool the engine, recheck the coolant level, and top off if needed. Dispose of the old coolant responsibly.
Note: Do not mix blue Subaru coolant with other colors or types unless the manual allows it. Use distilled water when mixing (if required) and follow proper disposal guidelines for used coolant.
Summary
In summary, Subaru’s standard coolant color is blue, corresponding to Subaru Genuine Long-Life Coolant Type 2 (premixed 50/50). Always verify the exact specification in the owner's manual or with a dealer, avoid mixing coolant types unless approved, and follow the prescribed filling and bleeding procedures to maintain optimal engine cooling and longevity.
What does Subaru coolant look like?
Subaru coolant should be blue. Blue depending on the year, they used to come green but can be changed over to blue.
Do Subaru's need special coolant?
Every vehicle manufacturer, including Subaru has developed its own coolant or requires a specific coolant that is unique to individual years and models. There are many colors of coolants to help distinguish each including blue, purple yellow, green, red, and orange.
Is all Subaru coolant the same?
Every vehicle manufacturer, including Subaru has developed its own coolant or requires a particular coolant that is unique to explicit years and models. There are countless colors of coolants to help distinguish each including red, green, purple blue, yellow, and orange.
What color coolant goes in a Subaru?
IIRC Subaru recommends using blue for 2005+ but it was green until the official change in either 2008 or 2011, everything 2004 and earlier can use green or blue, but not a mix of both. Color means nothing. Now, flush all of that out, because you can't identify it only by color, and put in your choice of coolant.