During the winter months, Magnesium Chloride is used on the roads to melt snow and ice. At higher elevations, CDOT urges automobile owners to wash their cars a few times per week to remove the Mag-Chloride. Mag-Chloride is highly corrosive and causes damage to chrome, wires and hoses if left on the vehicle for an extended period of time. Since CDOT has been using Mag-Chloride, various truckers' associations have experienced increased maintenance problems due to deteriorating wires and hoses. We recommend that you protect your auto investment by washing at least once a week during the winter. In times of frequent snowfall, you may need to wash twice or more. We also recommend that you wash your vehicle every time you come back from the mountains since there is a greater quantity of Mag-Chloride used above 7,000 feet.

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