My wife recently traded in her '08 Legacy on a newer one. She pretty much ran her old one until the wheels fell off (not literally). In the years she owned it, all it needed was basic maintenance parts and a new head gasket & water pump. One thing about the older Subarus our mechanic told us when the head gasket started to leak is that Subaru pretty much designed that part to fail after so long. He ended up replacing it with an aftermarket version that didn't have this "feature". Supposedly, Subaru stopped this in more recent models but time will tell. Aside from that, she loves her Subarus.