So explain how H injection doesn't work again?

[GasSavers_RoadWarrior]

There's a lot of basic inertial dynos out there that can't measure anything but WOT blasts. One needs access to a "real" dyno that one can vary load. Then one has to come up with an elaborate setup for doing what a driver does automatically, using as much throttle as necessary to maintain a fairly constant external load/speed. You're likely to waste days frigging around with the test setup on a very expensive dyno, then when everything is set you can frig around with the HHO on and off.

Then all you've got is numbers that say it uses X percent less, where before you had numbers that said it went Y percent further on a gallon. If nobody can get their head round Y what makes you think X is gonna sell 'em.