Since I am the technical cordinator,I would like to pass along a product I recently used on my truck por15 rust preventative.It susposed to prevent metal from rusting and prevent the spread of rust.Many different ways of using it,check out www.getrust.com it will give a complete description of the product.This stuff isn't cheap I payed $30.00 for a quart at a swapmeet.This stuff does seem to be very durable.I would reccomend it to anybody trying to keep their truck or any other vehicle rust free. Bob