Is there certain variables that can prevent the Jetstar from saving fuel on vehicles or does it depend on certain conditions such as the way the vehicle gets driven, maintinence or the "newer the better milage" Something prevents this product from a National Campain or does it just come down to the cash situation because you can get the word out on this product as we have seen on the Fox News video that we all saw, it will just take a lot more than one piece of news to get the word out. We have (to my knowledge), no government support of any kind and no municipal contracts to install any products. A full blown sales force would cost money but they will make money as well. Tom can't do it all but I believe that he thinks he can!