i'm wondering if you guys can give me any kind of leads or explaination to this....every week and a half to 2 weeks, i have to fill my radiator and resevoir up with coolant...i can drive the car and stop/ turn it off/ leave it idle/ etc.. and no coolant at all leaks out, but every 2 weeks when i check the radiator, theres no water in it nor the extra resevoir and i have to fill it up!!! Anyone else having this problem and does anyone know what might be the problem!!