This is really strange. At WalMart, I found several SF rated white round bottle of Mobil1. This was the oil that Mobil claimed could go 25K miles or 1 year, whicheveer comes first. It also claims it helps start engines at -35F. I think this oil is 1992 or prior, if I recall correctly. Wonder what dusty corner of a warehouse they founb this one. Almost collector items?