Brine
They have been using that crap here in Iowa for damn near 10 years now! It will be a nice sunny day and you'll see the DOT spraying it all over. They are anticipating what is to come. Sometimes the weather comes, sometimes not! In this state, the interstate DOT has these tanker trucks (looks like gasoline haulers) cruising down the highways just spraying the living shit out of the roads. Hell, I have even seen them doing it to the overpasses only because of frost threats!! From what I understand, it rots the crap out of the brake lines. We had a car that it did this too 2 years ago. The one shop that I had do an exhaust to my '74 bronco last fall said he went though 2000 feet of steel brake line replacement to client cars last year. It adheres very well being in liquid form and driving down the interstate at 70 mph, it flies up and curls underneath your vehicle like a soft summer rain. From what I understand, this is to keep the snow/ice from sticking so hard to the surface. I see one problem in that somebody is going to get killed from failed brake lines and the state is going to end up with a lawsuit. Yeah, you can tell this has been a sorry issue with me ever since they decided to use it here. Oh by the way, now some of the cities are using it for their main arteries. It's a no win situation. Wonder if the EPA has ever researched the effects of it getting into the water ways?? My two cents worth!~