Music, I appreciate your point, but this is not medicine, does not require approvals, studies, etc. You plug it in, turn it on and it either saves you fuel or it does not. And, getting back to your medicine example, if it doesn't work, no one dies or is damaged for life.
That having been said, why are they not selling these while waiting on this alleged testing? Personally, I am not convinced that any testing is happening. It could be that they are still looking for someone to do the tests and this is just Chad's way of stalling for time. In either event, we know that the first test failed, but it was the fault of the unfair tester! We also know that testing is not happening right now at this time. Put it all together, it adds up to incompetence in my book.