At one time it was LZ but now I'm not sure.
I asked about their DI30 (5w30 oil). Like Torco, they don't publish product data sheets. I can sort of understand why too because a lot of people don't know enough about oil and make decisions based off of false ideas about specific properties.
They sent me this:
View attachment 216929
well, I think that's probably the most accurate spec sheet I've seen. I am sure the actual values can be way off from typical in most oils