And when you put cars away for a long periord of time, like i have my Integra away for the winter, cuz i cant afford insurance while at college, i dumped some dry gass in there, to help with h2o condensation prob. it will help keep your fresh as possable, for that long period of time. also try to have as little in the tank as possable when puttin it away. so you dont wast that much gas, and so you wont have to drain that much.