No Wally I've ever seen has it. AAP go rid of a lot of their 5-20 oils earlier this year, I don't know why. (though I'm glad they did, I got almost 3 cases of 2.95 at less per qt!)
I haven't seen it available anywhere else since then, and that disappoints me as I think it's great, and it made a noticeable difference in my wife's MKX. that 3.5L motor has a tendency to get raspy and the MC full synth has really toned it down.