The Smogbuster Fuel Disc is being promoted as a device that "significantly increases gas mileage and improves air quality" by emitting "holographic frequencies into the gas tank [that] change the molecular structure of the gasoline." The disc, about an inch in diameter, sticks to the bottom of the fuel tank and retails for $299. Now I don't know about you, but I'm flabbergasted that the SmogBuster turned out to be a hoax! OK, I'm actually more astonished that anyone actually paid almost $300 for a freakin' sticker! I mean, at least make it a magnet... ;-)