My work vehicle is a 2000 rust free 5 speed car. currently at 311,000. I routinely drive 4 hrs or more one way to work.
I would drive it to Caribou, Maine or Key West FL today.
Yes it uses oil as well. Clean or change the pistons. Use new NPR rings.
As long as they are not allowed to get hot they are truly 400-500,000 mile motors.
Tell tale on these motors is a rod bearing rattle at startup and also noticeable at float rpms while driving.
If you start hearing that, start looking for a replacement longblock.