Sure, seals and gaskets are replaceable.
But rebuilding incurs downtime and costs money. (Can you say “parts AND labor”? There! I thought you could.)
Isn’t it smarter to AVOID the need to replace seals and gaskets by burning fuel that doesn’t damage them?
Especially when there is ZERO benefit of ANY kind to burning the DUMB fuel. It’s not cheaper, it’s not safer, it’s not higher energy density, it doesn’t keep longer...)
Just sayin’.
Please, my preference is to go directly to hydrogen fuel. Ethanol for fuel is, well, depriving animals who make wonderful dishes on the table.