my turbo went at 100k and went through the motor. Not a traditional patrol ZD30 failure but perhaps one of the more common ways the Nav ZD30 fails. Still not sure if I should have fixed it or not, cost about 10k, still not happy with its power level even after intercooler, exhaust, chip. I am still thinking there is something fundamentally wrong with mine as I have driven a mates 2006 model which is stock and is alot better to drive. Should take it to a dyno one day. No one can seem to find anything wrong with it.