im reading some guys getting 28+mpg how are you doing it? are you using water/meth? Propane? what are the reasons for using these(Pros-Cons) I.e. Cost of system,MPG, Hp, Cost of use Im new to diesel but not turbo so i understand water/meth a little but mostly i thought it was to help prevent detonation thats not a problem with a diesel lol thanks for the help ill also some of my own searching/researching also