The Subaru 0w-20 that you can buy over the parts counter, comes in a gold colored gallon or quart bottle, is made by Idemitsu and is a good oil for daily use.
A lot of dealers including the Subaru dealer I was tech at uses a bulk 0W-20 oil, that they would source locally, so that they can use the pull down quick fill oil hoses. If you do not ask for specific oil you will get the "bulk" oil. It does not mean its total shit oil but it is not usually the same as the "Subaru" stuff that comes from the parts counter.
Somewhere along the line I was told that factory fill is Eneos .
