Hi everyone!!! I'm Angeliz421, owner of a brand new Green Prius 4/21/2008. I drive my prius between 70 to 75 . I notice that when I use the air condition full blast, my gas went fast? If someone could tell how many gallons or miles left ones the gas blinking light turn on? I also need to know the best speed limit to get the best mileage? This is the best investment that I have made so far this year. I have driven German cars for a long time, last year I decided to do something to help save the earth for all our grandkids, I do a lot of recycling, planting organic fruits and veggies. any good advice is appreciated, thank you very much...