Review on Lubegard 30901 Bio/Tech Engine Oil Protectant, 15 oz. - Enhance Performance and Extend Engine Life by Julian Davidson

So this is one of the two additives recommended by a reputable oilman. This can actually provide additives that are lacking in today's oils that in many cases actually cure mites and engine knock depending on the species of those mites. This product is fortified with EP additives which, if the metal is out of tolerance, the engine will provide the conditions necessary for EP additives to be applied to the coating. This is science, not advertising. Many engines are quieter, here's why. The best part is that molybdenum is the newest oil soluble molybdenum so it becomes part of the oil and not just suspended in the oil like other molybdenums, of course molybdenum in these supplements can fall out of suspension and cause problems. I removed the star because it ran out, about a couple ounces, but I'm still keeping it.