Stainless steel can be a soft metal. To make it harder and stonger you loose some of the stainless properties. Some people can make even the best stainless corrode due to whatever their body puts out. But ususally that is just surface stuff and is not anything to be concerned about (other than cosmetics). But I can understand why it would make you wonder.
The stainless slides are stainless thru and thru and not just a surface treatment. But oils do not stick to stainless as they will to a parkerized surface, so even if oiled the oil will wipe right off. I would try some of the Blue Wonder product to protect the appearance.
The good side is that it should be your hand oils or body sweat causing the problem. Normal moisture and rain shouldn't cause any problems.
The stainless slides are stainless thru and thru and not just a surface treatment. But oils do not stick to stainless as they will to a parkerized surface, so even if oiled the oil will wipe right off. I would try some of the Blue Wonder product to protect the appearance.
The good side is that it should be your hand oils or body sweat causing the problem. Normal moisture and rain shouldn't cause any problems.