It's starting to be impossible to find in Costco's in Hawaii (Oahu). I used to see them all the time last year up until the fall and never saw them again. Interesting enough, last weekend was the first time I saw any oil at any Costco on this island and it was Mobil 1 5W-30. As everyone has seen, the prices have gone up for Kirkland engine oils. It's getting to the point that you might as well pay the little extra and go buy some of the other top tier/off the shelf brands.