Mike V. Florida
Well-known member
I used to believe in WD40, till I moved to the coast. In that salt air environment WD40 seemed to encourage rust. Things sprayed with it rusted much more quickly than things not sprayed at all. This may only be because of the salt air, but even since moving back inland I still am reluctant to use WD40 as a rust preventative.
The big problem with the products we all know, love, and swear by, is that they have been made to change their formulas over the years so they most likely don't work as they once did.