I went to a Super Wal-Mart just recently,one I have not been to in awhile.Anyway,there on the shelf was plenty of Chevron Supreme dino,in all weights.I asked stock clerk dude why they are the only Wal-Mart in the area to sell it? His reply was,it sells and they keep it in stock due to that.And,at a $1.08 a quart I bought (2) cases of 10W30!