There has been a lot of misrepresentation regarding this product. It is a grease that prevents oxidation.
According to hobbyists’ instructions on its proper use, the first step is to clean the track, then apply small amounts (one version suggests a few dots spread out every foot or so) that are spread by the wheels or the rollers. The residue then needs to be removed.
The grease reportedly reduces the need to clean track frequently by maximizing electrical conductivity.
However, given that other elements reduce electrical contact (smoke fluid residue, dust mixed with oils, broken-down rubber from traction tires, etc.), saying that No-Ox ID A Special eliminates track cleaning sounds like a hard sell. Yes, I have read accounts here that say “I applied it to my track and haven’t had to clean it since.” But I can say the same thing for other type of cleaning-only practices.
I like the product as an oxidation prevention step. That’s its purpose. Period.