I told the manager at my local AZ that the AC would never sell and he manually ordered new stuff. GC gold is on the shelve now - I don't know what happend to the AC. You may want to place much (but not all) of the old AC behind the other grades yourself. If anyone at AZ notices that the 0W30 is low, maybe they will re-order manually. I have heard of people buying the AC, returning it after the GC gold arrives, and then buying the new GC.