I just read over the test of anti-corrosion elixirs on the site. Awesome test. It included some stuff I aleady use, BreakFree and Eezox, and some products I'd never heard of, Corrosion-X and FP10.
http://www.6mmbr.com/corrosiontest.html
They did some very ruthless testing with a salt-spray solution. Having myself seen how quickly a gun can rust in just a couple of hours, I salute the folks that ran this test. I won't spoil the fun--you have to read the article yourself--but I will say, don't count on automotive motor oil to do the job:
There's also a good link where you can buy dessicants for about a twentieth of the cost in most gun stores.
http://www.6mmbr.com/corrosiontest.html
They did some very ruthless testing with a salt-spray solution. Having myself seen how quickly a gun can rust in just a couple of hours, I salute the folks that ran this test. I won't spoil the fun--you have to read the article yourself--but I will say, don't count on automotive motor oil to do the job:

There's also a good link where you can buy dessicants for about a twentieth of the cost in most gun stores.