Folks, I need some advice regarding my 2000 Subaru Outback. The head gaskets have begun to leak slightly (oil and coolant), even though I brought it in for the recall at 80K and the dealer put in the additive. I recently (111,000 miles) put in another bottle of the additive coolant conditioner and the leak seems to have at least slowed to a trickle. Is it really essential to have the head gaskets replaced? Or could I just keep an eye on the oil and coolant levels and put a bit of kitty litter in my garage? Some of the information I googled indicates that the recall of this car is for an OUT leak and not an INNER leak--which would be worse. Is it true that an OUT leak is not as worrisome? Thanks for your help. Joe (Papamoose)