I don't think anything with mechanical moving parts is going to last that long, with regular usage, and have original parts.
The fact that the owner can keep it going is a testament to the maintainability of combustion engines that don't have high tech computers in them.
> The fact that the owner can keep it going is a testament to the maintainability of combustion engines that don't have high tech computers in them.
New engines with modern ECUs are every bit as maintainable.
The ECU doesn’t make an engine less maintainable. Modern engines would have more moving pieces such as variable valve timing but otherwise they’re very similar in concept and maintenance.
One part of maintainability is cost. And a simpler mechanical engine without proprietary ECUs is going to be cheaper to maintain, provided parts are available.
If someone encounters issues with an ECU and it needs replacement at $1k-2k they might just consider the costs and that being a down payment on a new vehicle vs. repairing. Labor costs more than parts for complicated electrical/computer/engine problems. Electrical issues in modern vehicles don't appear to be easy to troubleshoot, sometimes require proprietary tools. A simpler mechanical engine could be DIY repaired and running, check out the "low-buck garage" youtube channel and the $2 Jeep series as an example.
I'm not advocating something like going back to computer-less, inefficient, stinky, loud cars, just pointing out that when we add computers to things, it makes them less maintainable to the average person.
> I don't think anything with mechanical moving parts is going to last that long, with regular usage, and have original parts.
I know of at least two cars with 800k km with original engines. Both GM small blocks (Gen 2, multiport fuel injection so computer-controlled). Neither engine has been opened since they rolled off the floor in the 90s. They’re not particularly efficient (only about 270HP out of 5.7L) but if taken care of, they probably will go forever.
Definitely an exception, though. Very little else on those cars is still original. But it can be done.
There are definitely a few engine designs out there that won the design lottery in terms of longevity. I know a guy that has close to half a million miles on a Jeep Cherokee with the old AMC 4-liter straight six, and the only engine work done other than plugs and wires is replacing the water pump at 250k. I've got ~186k on my Jeep with the same engine, and it doesn't even burn any oil yet.
I don't think anything with mechanical moving parts is going to last that long, with regular usage, and have original parts.
You should visit any third world country: plenty of old cars still running around.