Apparently mechanical engineers learn about lubricants: how they're made, why they differ, what to use when. Greases, oils, and penetrating lubricants all are v

Apparently mechanical engineers learn about lubricants: how they're made, why they differ, what to use when. Greases, oils, and penetrating lubricants all are variations of the same thing: fats, soaps, additives. You figure out what your application is and how the lubricant needs to perform, then design your lubricant to purpose. (fwiw the market for lubricants is about $125B globally and grows every year) Also, really dumb fact: you can make gallons of your own sexual lubricant for pennies. Just mix a teaspoon of xantham gum with a pint of water (and if you want to preserve the whole batch, 10 drops of grapefruit seed extract). The stuff you buy in stores is about 100x more expensive and contains potentially-harmful additives.