I can get a great deal on bulk Idemitsu Motor Oil 0W16 which is what my new subaru takes. I've heard that toyota, mazda and Subaru oil are made by Idemitsu and that the "dealer" oils have a high moly content. Just wondering if the ID oils also have a high moly content. Can't seem to find a virgin oil sample. I tried Mobil 0w16 and my engine did not sound happy.