Pick your poison....Just forget it!!!!!
Do you for one second think that the auto mfr's wouldn't give you more mileage out of the same vehicle if they could? You don't think that they would offer a Semi truck that got 80 miles to the gallon if they could do it?
Gimmics!!!!!
Many attempts have been made to "atomize" the fuel better for better power and less consumption but they either make the vehicle so it can't get out of it's own way or they just plain fail. I WANT to see the vehicle that increases it's mileage by 40% at highway speeds. Just remember, if you only get a 1% increase in mileage, that is ok because they said results vary. "Reported Gas Mileage Increases as high as 58%". They don't tell you that the guy that installed it also had a faulty engine mgmt. computer, a bad oxygen sensor, two failed plug wires, and a bad MAP sensor all replaced at the same time he had the unit installed.
I work at a auto dealer, and I have seen a lot of this junk pass my way. Please just put the cash in your tank like the rest of us sorry SOB's and save yourself the grief.