I only have 65K on mine, but if its like any of the other Nissan's that my family has had, there should be no major problems for a long time. My dad has a 86.5 hardbody (3L V6 I think) with probably 450,000 on the original engine. Only major repair was because a timing belt broke and bent a few valves. This engine was abused too, oil changes only happened when the engine had problems starting (so about once a year on dino with probably 30K a year). They now have a 2000 frontier (3.3L) with 140K and that engine purrs. Only problem is a exhaust manifold leak, but disappears when its warmed up. So I'd say the engine and transmission should be pretty worry free, which are the big money sink holes on older vehicles for the most part.