This is quite an interesting idea if it proves to be valid. One of the moderators on a car BBS I frequent has installed a 1"x1"x1/2" block of 99% pure Zinc to the undercarriage of his vehicle saying that this can aid in corrosion prevention. Sounds a little out there but I'm no mineral expert either. The idea has been used by the RAAF to prevent corrosion on aircraft and is apparently quite successful. Anyway, surely someone on XOC has at least a high school education, or perhaps a GED and can shed some light on this Zinc theory for me.

*Nope my X is fine, the only rust I have found is exhaust related parts for the most part, but I'd also like to pursue this if it works to keep it that way.