I used to own an LS400 many years ago and it was such a great car, reliable and super cheap on parts too. I have been looking at the IS 2.2 diesel and seen many conflicting reports on reliability. On honest John the review seems good but only give it 3 stars, the customers reviews give it 5 stars yet talk about a lot of issues. I see a lot of problems with the diesel particulate filter, which seems fairly common on many brands, but also mentions of this forum of "horror stories" with the engine, I don't know what to think. Any help and advice would be appreciated.