Just so people know; everyone was excited about the fabspeed HFCs resolving the SES, and in almost all cases, it took 1k miles+ before the SES came on. So just an FYI before everyone goes out and buys this. 250, 500 miles doesn't mean a whole lot. Once you are into 3-5k, then I would say you know this thing is working.
Did Burger say how long they tested this?