I can sense the excitement in these forums when you come across an unexpected supply of premium oil; either rare, like GC or another, say M1 at a great price. But dont you find that when you have plenty you subconciously change your oil more frequently than would be the case if your stock was in short supply?
Also if you have tooo much that it might be a long while before you get through it, that you are envious when a 'new and improved' oil comes down the pipe?
Just some things to think about.