Breaking in an engine you drive it below the suggested RPM limit while the pistons set into their seals, etc.
Not sure about engines, but when you "break in" a horse that doesn't seem like much of a "rest" for the horse. More so indoctrination or submissive tactics.
c0mbatbag3l@lemmy.world 1 year ago
reagansrottencorpse@lemmy.world 1 year ago
Breaking a horse is breaking it’s spirit from what I can tell.