Just got a 0300. I have Breakfree CLP, which is one of the best corrosion inhibitors I know of, but I haven't put it on the 0300 yet. I did, however, wipe the knife with a light coating of mineral oil, and then I thoroughly wiped it off with a dry rag so it wouldn't be greasy. The purpose was to slightly darken the titanium handle and the blade, and it did. I used mineral oil on the handle because I didn't want to come into contact with a petrolium-based product everytime I touch the knife, and since it's titanium I don't have to worry about corrosion. (Mineral oil is nowhere near as good at protecting against corrosion as Breakfree CLP.)