This thread reminded me of various inexact tests I performed a few years back regarding the best lubricant to protect knives/firearms in a marine environment.
I used standard nails that had been sanded and washed w/ clean water afterwards. Each nail was then treated w/ the different lubricants and I was very careful not to cross mix or contaminate each one.
I timed the duration of exposure over a period of seven days, and the results proved Eezox to be the very best but the Break-Free liquid did very well also. Ballistol, FP-10, Boeshield, Corrosion-X, Rem-Oil and of course WD-40 all showed significant corrosion compared to the top two.
Keep in mind that the water I used came directly from the Atlantic ocean, Cocoa Beach FL to be precise. From the videos I've seen on the tube many were using regular table salt, not a realistic indicator of what to expect real world.