This incidentally is why used school buses from Colorado are highly desirable in the skoolie community (a skoolie is a used school bus converted to a motorhome). In addition to the generally high-quality transmissions and retarders (essentially for handling mountainous terrain), the “sand” you use doesn’t promote rusting-out of the bus bodies like road salt does. In a sense, though, this is still bad for the environment: the extended lifespan of these vehicles keeps them on the road spitting out carbon dioxide longer then they otherwise would.
This incidentally is why used school buses from Colorado are highly desirable in the skoolie community (a skoolie is a used school bus converted to a motorhome). In addition to the generally high-quality transmissions and retarders (essentially for handling mountainous terrain), the “sand” you use doesn’t promote rusting-out of the bus bodies like road salt does. In a sense, though, this is still bad for the environment: the extended lifespan of these vehicles keeps them on the road spitting out carbon dioxide longer then they otherwise would.