I ordered one unit from www.drfuelmax.com . Guess what, the **** thing seems to work. However, We have two cars and we monitor the fuelconsumption and miles driven. It will take some 2-3 months(and 12-13000 miles) to get accurate numbers on both cars. We have the exact numbers on one of the cars from 0 miles and to where it is now(95000miles). I am going to order the second unit, 11 days from now. I read about it here on BITOG first and then decided to order it, after closer investigation. It is a Japanese invention, and they don't like to loose face, so I thought it would be a better chance that this thing worked, than if it was made in the US. The other thing that caught my attention, was the testing performed at Toyota in Japan. The third thing, was the findings of the Maxima driver from New York, that bought the device and reported his findings. Since the car I installed it in(yesterday) is a 2.8 liter diesel with six sylinders, I can say that the noise from the engine have been reduced some 20-30% and the acceleration is remarkebly faster. However, I want to see if it does something with the fuel consumption before I know for sure this is THE REAL THING. The car I drive is a 1990 model Nissan Laurel 2.8 diesel. The other car, that is driven by my wife, is a Mercedes Vaneo 1.7cdi 2003 model. I haven't told her about Drfuelmax and i am not going to tell her that I put it in her car. If the fuelconsumption on that car goes down, then this thing works. This testing will be good enough for me, since I don't have 235 million USD to do some more extencive testing to satisfy those people who will always say that things doesn't work. I'll let you know my findings, probably in the month of December.