Comment by burnt-resistor

Lubricant: terrible. Use something like an oil that remains rather than evaporates away.

Rust prevention: marginal. Use proper coatings or a flash rust prevention compound that sticks around.

Penetrating oil: terrible. Use 1:1 acetone:ATF instead.

Toxicity: terrible. It's petroleum distillates.

It's popular only because of missile hype and marketing, but that doesn't mean it's any good.