like the others said, stainless steels, especially the kinds of stainless used in knife blades, are exactly what their name implies, they stain less. usually the higher grades of knife stainless are the ones which show spot rusting easier than the cheaper grades being they are the higher carbon, lower chromium stainless. the lower the chromium, the closer they are being carbon steel and hence the easier they rust. to take care of your problem all depends how often you use your knife. if you use it every day then i would wipe the blade with an oily rag at the end of the day before you go to bed. if you dont use it very often then you might get away with doing it once a week. just a very thin coat of good rust preventitive type of oil should do the trick. i keep an old piece of a t-shirt in a sandwich baggy and is very lightly oiled which i use to wipe my blades and firearms down occasionally. i have never had a rusting problem with either. i hope this helps,,,VWB.