I had a 19J engine One Ten and ran it to 75K miles before I sold it and the purchaser ran it to 150K before I lost track of it. Compared with a NA it was a revelation. It was always serviced on time but apart from that it had no special work other than a new head gasket at about 70 k miles due to a slight oil leak on the block joint face,. It was extensively run well loaded as a recovery vehicle on Car rallies. Land Rover had it back to use for MoT Smoke testing at the factory , as it was about the time the smoke test had come in and Land Rover were getting a lot of complaints of failures, both of engines and excessive smoke . Needless to say it passed with flying colours and the subsequent owner to me never had an MoT failure for smoke. I must admit it was not what I would call a robust engine. It needed to be serviced properly especially with the correct oil . I know we had failures with the factory fleet as initially the internal service departments were not using SHPD oil which was very new to the market at the times,