Well, it says guaranteed to increase your mileage by 50%... so, wouldn't that mean a 60 mpg car would get 90 mpg, not 120? I hate percentage increases... they mess with my head.
Sounds theoretically plausible -- who's gonna try it, and let us know if it works?
If it really works for motor homes as the website suggested, I would recommend it to my mom... they get 6 mpg in their diesel pusher... oh wait, it probably wouldn't work for a diesel, right? Do they have catalytic converters? I think my ignorance is showing...
So, yeah, it's a total scam. I feel foolish.
http://www.findinternettv.com/Video,ite ... 67966.aspx