Subaru coolant is somewhat
Subaru coolant is somewhat special, because it contains a uk made product called 'Radweld', basically it is a 'stop leak' product tested by Subaru, so they mix it with green coolant and sell it under Subaru name. It is something you could buy separately at the parts desk for about $6 if you don't use oem coolant, however for the warranty purposes only stick with oem because they will use every measure to look for reason not to pay for warranty repairs. If you coolant leaks and car still has warranty they will fix it if you have records. There is a number of reasons why coolant could leak from subbie (corrosion on battery terminals, bad motor ground, etc. it is too much to discuss here but more info is available on forums. Basically using oem coolant SOA hopes cars will make it until warranty expires after that you are on your own. Once a few months ago at dealership parts desk I asked a parts clerk how are the new cars doing with leaks, he told me his neighbor has a 2011 outback and it leaks oil on the driveway...i found this to be a strange incident when parts guy is laughing out, ask the parts cleck at the desk when there is no one around, chances are the answer will be totally different than from sales or mngmt people. Who will admit buying a new car can be a gamble with subaru these days.