Hi Guys, see www.inox-mx3.com
to try and resolve this infinite debate for RCers, Bikers, Gun people etc.
WD40 is hydroscopic and is derived from petroleum not fishoil or any other thing.
It is not so good for the applications above but rather a cleaner, dispersant etc.

To store the above equipments RC enginines Guns Bike chains and parts, razor blades, scalpels etc etc etc use the Australian made INOX ( less viscous) or LANOX (slightly thicker from Lanoline) in spray or liquid form Both are fine Lanox for longer storage as well. This product IS a lubricant, Self Capilliaring so it soaks through to all nooks and crannies and will stay on the surface forever practically till article is used again.
It will even penetrate metal to 3 microns for further protection.

In Australia for 20 years its used on many applications including farm tools left out in the elements.
It will polish SSteel and is great on Sail runners etc etc

It is far more effective than WD40 for these discussed applications.
Inox will not harm any rubber silicone, metal etc it is non acidic and completely inert and Is a lubricant.

WD40 is an excellent product and perfect for its wide range of uses.