Enter your question.2002 Outback, 144K, indy shop says "leaking head gasket". Was fix once under warantee @ 87K. Had coolant flush/replace @ 133K but probably not Subie coolant. Would that cause new leaking now @only 144K? Can we drive it?
I would be thinking that it will be a problem with the finish on the cylinder head, these are very critical and as Subaru use steel gaskets, any incorrect coolant may be a problem, I would not be driving it as the chances of doing further damage will increase.