I've heard of these things before. There is one that makes normal fuel safe to run on cars without hardened valve seats. Works as a catalyst. And there was a compan years ago making what they called fuel saver. I fitted a device that went inline on the fuel pipes to an old Datsun. Supposed to increase power and reduce pinking. Not sure if it made a difference. But I've see a simaler thing in hyper revs. That says fuel saver on it.