Parents had a 1993 Toyota Land-Cruiser with the N/A 1HZ Diesel engine.
Was purchased from a country doctor in 1995. Is now at 470,000km (292K miles), had an engine rebuild in 2012 at 433k km/270k miles, the transmission was overhauled in 2009 in the latter 300,000's (200-220k miles) and the original clutch replaced.
The vehicle has been used from anything from a country daily-driver in its early days, to suburban grocery-getter, road-tripper, to an "expedition" role related to my father's work. Its primary role now is towing a large boat, but also as a DD. The vehicle is mostly stock.
Only issues have been the front and rear middle seat-belts failing, and an A/C that could never hold a charge... Despite compressor replacement, evaporator, hoses, seals, leak indicators. Everything!
Unfortunately, the other higher-mileage vehicle we've had, a 1992 "Everglade" coloured Ford Falcon GLi ("EB" series) with the 4L inline-6, did not cope so well transitioning from the country/highway lifestyle to the city. It was in the "danger zone" mentioned by a previous poster.
Several head-gaskets, warped brakes and who knows what else (was too young at the time to really know).
Maintenance issues aside, plus the rather heft fuel consumption... It gave a smooth and very comfortable ride. Its not something that modern vehicles really achieve, or even my '93 BMW, which does find every bump. Great to drive, and presumably part of the experience, but not always desired.
Then there's my '93 BMW, my first car, bought off family. Now has 211,000km/131K miles after 3 years ownership. Have spent about AU$2K getting it "up to speed" on cooling system work (which was overdue), shocks/struts/springs, trans & diff oil changes. Servicing at an Indy twice doubled that, but not because of any work done as such... Its just that labour costs nearly $150/hr down-under.
Aside from a pinging issue at present, its economical, comfortable and fun to drive. unfortunately saddled with Siemens electronics rather than Bosch - increasing cost of replacement parts.