Kathleen Schaefer, MN DOT in a KARE-11 report (c. 2004):

Schaefer said Mn/DOT has learned to wet the salt before dropping it on the road, "If you get it wet, it gets sticky and it stays in place better so you can reduce your salt application by 30 per cent just by getting it wet"

Wet salt=sticky salt, if you have to drive your Crossfire in the salt, dry roads contribute to 30% less salt exposure than wet. Generally speaking, I suppose.

But you people are right, salt = salt and if it gets on your car it will corrode any exposed metal!!