I have heard that there is some kind of hydrogen injection like water injection. You mix part a and another part in a tank and it has a hose that runs to a plat under the carb. I have heard it helps some depending on what you are getting for fuel mileage to begin with. I have heard take about it with motor homes. Maybe check some of the RV sights. Remember, I have not seen it myself just over heard some guys talking about it on 80 meter.