just to outline this fictitious would you rather, you rich enough to retire cryogenic preservation is perfect. you could live out the rest of your life in retirement and see the world evolve “like god intended”, or you can adopt cryogenic lifestyle where you freeze yourself for however long you want and stay thawed for however long you want but your still a human with natural human lifespan so you will eventually die.
of course contingencies are allowed if you think something cataclysmic will happened you can be dethawed abruptly and considering future medicines to extend your lifespan is allowed
yeah I see that. lube would get a big need, but my car runs out of gas several times before I need an oil change and retail stores do carry oil. ironically canola oil and vegetable oil can be used as motor oil. when you run out of oil then things start to grind to a stop.
but machinery would become too costly to maintain and people would stop using it. if a valve broke on a engine I doubt people in the post apocalypses would repair it. unless it was part of a town where people would have both the need and expertise to fix it. there would be easier to maintain alternative of machines that wouldn’t require lube, filters, replacing of metal parts.
after a century an internal combustion engine would become unusable scrape