I'm always leery of these "miracle" products. I appreciate an alternate brand of oil but the "rejuvenation" thing throws me off.
Had a guy selling Bitron try to sign me up years ago. I was polite and even took the video home to watch. It looked like great stuff - running a vehicle for 50(?) miles with no water and no oil. This stuff never really took off either. He was a little upset, when I declined his offer. Yes, I knew how pyramid schemes worked. I really had no interest from the getgo.
I'm not saying Xado is a pyramid scheme or is bad. I think they may have had better success trying to market a high quality product rather than a "miracle" product.