the tornado is this as seen on tv product. It is like a stationary fan (no moving parts) that sits in your intake hose (after mass air sensor). The air is swirled creating a more powerful induction system. I don't particulary have crazy driving habbits, I mean i get on the gas now and then when necessary but thats about it. I'm in need of fuel and my milage is at a little over 300 (light isn't on yet). Is there something that could be wrong with the car? I'm open to any suggestions.