Should Creosote used as an automotive undercoating?

Creosote is a very unstable substance. If you somehow undercoat your vehicle with it, you need to be in either Alaska or Canada or northern Europe for it not to melt--it dissolves, however slowly, at seventy eight degrees, so you'll lose it all in the first summer. On top of that, depending on where you live, it might be illegal to use Creosote on an automobile, or outdoors in general.