Friankie:

For field use, any oil or fat that resists water should work. You can always run your fingers through your scalp, or any part of your body that tends to secrete oil, for a workable amount of oil to rub on the blade if you do not have anything in liquid or paste form.

For longer term storage, I tend to be biased in favor of "RIG" gun grease in heavier amounts for my guns and knives. For shorter term application, where I may be wiping the blade off for cutting food or swabbing the bore clean for shooting, I usually have a thin layer on there that was wiped on with a "RIG" grease impregnated cloth, let stand in a warm area for a while, and then lightly wiped off.

Good luck!

Bountyhunter