I'm looking at a 2001 Outback 3.0 H6 LL Bean Edition as a possible replacement for my 1998. I'm not so familiar with the H6 engines and am wondering if anyone has any insight on them such as known mechanical issues, actual mpg versus four cylinder, etc. I know 2001 was the first year of this engine, which is what makes me slightly nervous. I also know that premium fuel is "recommended" and that the H6 was significantly updated in the 2005 and later model years. Any experiences positive or negative would be helpful.