HI my names jennifer and my mother's own my deceased fathers 2000 honda insight. My mother has been taking really good care of it, but for the last year there's been some problems. we got the ami battery replaced and the oil changed. but the mpg has gone down so low that it's at 30mpg's. I took it back to the honda dealer and they cant find anything wrong with it. I'm hoping that somebody here might be able to help me out by telling me whats the problem so i can get it fixed for her. She loves this car very much. I do have a feeling that the machanics at the honda dealer really dont know what there doing. PLease help if any?