Subaru OEM Coolant System Additive
 

I have a small coolant leak from my radiator. I found this Subaru OEM Coolant Additive that has been recommended for leaks in older Subaru vehicles. Would it be fine to run in the FA20?

[ame="http://www.amazon.com/Genuine-SOA635071-Engine-Coolant-Additive/dp/B007WR8DD0/ref=pd_sim_auto_5?ie=UTF8&refRID=081G75D7ADKQK1GSR 3V0"]Amazon.com: Genuine SOA635071 Engine Coolant Additive: Automotive[/ame]

Thanks in advance.

That was used in the old 2.5 liter cars to help prevent head gasket failure. I ran that with no issues in my old Legacy GT past 150,000 miles on the original gaskets. It's not a stop leak and will most likely not fix your problem. I also personally wouldn't use it in my FA20 as it wasn't designed for this engine. What caused the leak? Can you bring it back to the dealer as a warranty issue?