It's a mixture of light mineral oil and light mineral spirits. As a lubricant, the mineral spirits carry the mixture into crevices, then evaporates, leaving an

It's a mixture of light mineral oil and light mineral spirits. As a lubricant, the mineral spirits carry the mixture into crevices, then evaporates, leaving an oil film behind. This is either useful and appropriate for a situation, or it's not. Also, the oil might not be a specialized oil for any particular use, but a lot of applications don't need a high performance oil. In my view, the drawbacks are: 1. Controlling overspray. This is why, even if I liked the stuff, I'd prefer to apply it with an eyedropper in many if not most cases. 2. General ignorance about lubrication needs, where something else is preferable, such as grease, a suspension of wax, penetrating oil, etc. On the other hand, keeping a supply of every possible lubricant can be a storage problem, and I've gradually come to prefer using the "wrong" stuff than buying yet another oversized container of something that I have to keep forever or dispose of.