bcp2011 said:rslifkin said:That holds true in climates where it stays cold enough for the car to stay dry and salty (or icy and salty but not melting). In most of the US, it's not cold enough for that. So unless there's been a dry stretch of weather, the car sits wet and salty (or with slowly melting salt slush on it).
Yeah I never understood the logic of keeping cars outside as a way of rust prevention. The point of salt is to lower the freezing point of water, so if the concern is road salt chances are the salty liquid mixture will remain a liquid far below 32 degrees. Of course if you're in an area where it's regularly below 0 degrees Farenheit maybe that'll work, but then what's the point of putting salt on the road if it doesn't melt ice/snow?
Because I used to live in an area where it was routinely below -18C or 0F. In my area, it was common to use pickled sand (75% sand and 25% salt). They applied it because the sand works in the cold and the salt works once it warms up.
