What system are you guys using?I would like to start using but there are so many systems out there. any suggestions would be greatly appreciated.I drive my 03 ex about 250 miles a day for work.I have a k-9 security buisness so i have 1 or 2 k-9s with me all the time so cheaper fuel would be great plus helping the enviroment is a plus as well thanks for the walth of info it is greatly app.