Went to the gun show today here in Hampton, bought the usual, ammo of various calibers, some of what I call gimmick ammo, snake shot, so forth, a couple of pistol mags. So this is my question, I bought some stuff from this one vender who threw in a bottle of "Lucas gun oil". First off, has anyone used this on any of their firearms? I have used Lucas products for years in my cars, but somehow have missed this one till now. Is it worth anything, or just another gimmick