I am about to prime a keg of old ale and then store in my basement for a couple of months (2-4) before hooking up to gas ans serving. At the moment I have a small kegerator and have not the space to store under refrigeration. It should maintain a temp of about 62-65F over that time. I learned I must hit it with gas to seal the keg, but am wondering if in storage at those temps it will maintain high enough pressure to stay sealed as the beer absorbs co2, thus my question on how much sugar to use. I see four ounces commonly used for kegging, but is that enough for my purpose? Thanks for any help.