Anyone have information about DT 550 Friction Reducer by G&H Petroleum Enhancer Products? I ran across them while browsing YouTube videos looking for a good additive for my rear differential. It looks like it's a new product so the only information I've been able to find is from the seller company. They employ the wear scar testing in their videos but I've not found any lab testing. In that one test they excel even above products like Hot Shot's Secret FR3. I would like more information before adding them to one of my vehicles.