Just no information other than one forum user describing it as being made from magic German unicorn farts....but seriously, BMW customer service didn't have a clue about what a "data sheet" or technical data on their oil was. A call to Shell confirmed that BMW has the data sheet and is required to make it available in the US. Today I followed-up with BMW with a written request.
If anyone cares, I'm attempting to compare BMW Advantec 5w40, Rotella T6 and Shell Advance 4T Ultra motor oils. Shell responded quickly, providing the technical data
on their two oils. It's interesting that Shell distributes their Advance line of
motorcycle oils all over the world and is advertising it in the US, but none of it's
distributors carry it. Shell actually told me I have to call my local distributor
and request the product...which I did...and of course they had no information on the
product other than what I gave them. All just interesting information, but only if
someone is actually interested....stay tuned.