Well apart from a series 1 I have had them all pass through my life at some point and the Td5 is my absolute favourite; and the engine was purpose designed for a Land Rover. only really had two faults and that was plastic location dowels for the cylinder head on the early ones and oil tracking up the injector harness which cost a fortune on early cars but peanuts later on. They were supposed to be improved to prevent oil ingress but I never found them any better, anywhere between 20,000 and 40,000 miles was the life so not something to prevent ownership but they would cover starship mileages and I love em!