I haven't had too much (but some) trouble with rust on plane or chisel blades since I try to keep them stored in plane socks (and even socks inside the original plane box) and chisels in rolls or drawers. But I keep thinking I should probably use something to occasionally wipe them down with. I use TopCoat on CI but dont much care for it on plane irons and I'm just as apt to spay on some Liquid Wrench if it's handy then wipe dry. I know LN seems to favor Camelia oil, but I've read a number of posts that dont agree. But I got to wondering - whether you're going to use it or not - what's the big difference between Camelia and other vegetable oils? Is there some property that makes it any better than wiping with Mazzola, Safflower Oil, or Olive Oil? Could I get the same effect just picking something up at the grocery store? Just curious if anyone knows why Camelia is recommended over other vegetable oils.