that stuff they spray the roads with should be outlawed. all it does is eat anything metal alive. look what its doing to vehicles then think of what reinforces all of the bridges. a little crack in concrete cc eats rebar. i forsee Iowa having alot of bridges that have to be replaced in 10 to 20 years because of that stuff. but they will never admit it is because of cc spray. all it is good for is costing tax payers money from vehcle repair and having to replace them because they are rust buckets in no time. then what it cost to repair roads and bridges that it ruined. i have been turning wrenches for 40 years never ever have i seen oil pans and diff covers with rust wholes in them till they started using cc on roads