It's a Lithium based grease that is quite common. Just search for Lithium Grease on Google. In the end I wasn't really happy with it. It is great when you want to turn the pot fast, but if you want to turn it very slowly it can sometimes grab and stutter slightly. So I ended up adding a slightly heavier grease to smooth it out when the knob turns slowly. You might need to experiment. But anything is better than the grease that the factory put in those pots.