I was speaking to a representative at Mobil in Canada last week about why I can only purchase 0W-40 in the Tri Synthetic formulation. I complained that all the other weights were now SS so "What's the delay ? " He made it clear that he did not know this for sure but he was under the impression that they have not got their containers printed yet ( French laungauge crap that we have to endure up here )and the actual oil is in fact SS. Any one heard of such a thing? OA would confirm Moly , yes or no.