With some/most of us here building stashes (or hording as some have called it), of GC for future use, I am a bit concerned with this comment on the Castrol SLX spec sheet; "Storage; "All packages should be stored under cover. Where outside storage is unavoidable drums should be laid horizontally to avoid the possible ingress of water and the obliteration of drum markings. Products should not be stored above 60°C, exposed to hot sun or freezing conditions." All kidding a side, does this mean I shouldn't store CG in the plastic quart bottles in the unheated but attached garage over the winter months or does this only apply to the bulk packaged GC in steel drums? My wife will shoot me if I have to move my 87 bottle stash inside for winter. What are the consequences of leaving the oil out in the unheated garage over the winter - other then upsetting the elves of course, which granted is bad enough? Plus what happens to the oil when it sits in the crank case over the winter if the car is in storage?