I pruned this from the RT forum:
One of the things I find ironic is at one point BMW, or it's engineers, stated the switch to the new oil was because they no longer want molybdenum in their oils. Claims it can harm the coatings of the engine.
But in Blackstone testing of the "new" Shell oil, what was found in it? Yep, molybdenum. And I'm not talking trace amounts either. Amounts similar to the earlier Shell T6 with API ratings on it. Even better, testing of the Liquid Moly does NOT have molybdenum in there. So by BMW standards, Liquid Moly is an even better oil than it's own BMW branded.
What new Shell oil was the test run on? What Liqui-Moly lubricant are you referring to? As far as I know,
Shell makes a lot of different liubricants, for a lot of different purposes. So do
Liqui Moly and
Motul. Some contain molybden, some do not.
As somebody stated here earlyer, BMW Advantec 15W-50 is not the same product as Shell Advanced Ultra 15W-50, even thou they may (or may not) be manufacturered in the same place.
We have to bear in mind that Shell, Liqui-Moly, BMW and Motul etc. are only brand names of products. The brand name does not describe the contents of all its products.
Let's stick to facts, not unfounded opinions, shall we?.
As somebody said earlyer: There's nothing like a good old oil discusion, to ligthen up a forum ;-)