I told this story two times, and here it is thrice repeated:
My '12 Honda Fit started running poor within 2 days after installing this powdered moly. I blame it. Right or not. 1/2 bottle in warm oil.
Later I ran an ounce or two from the same bottle in my Generac 5500 a with fresh VR1 10W30 synthetic - an application that has no oil filter, and that sump fill stayed in for 7 years(!) with no issue and smooth operation (low <50 hours useage)
I suspect 15 years ago with E10 and often reported "mahogany" colored used drained oil, there was some gumming and agglomeration happening that has been sorted out with the latest oil formulations. IDK. Pure speculation.
I would say go for it in non-filtered ODPE sump - and a little goes a long way.
I will NEVER AGAIN use Liqui Moly MoS2 treatment in an automotive application, or a motorbike. - Arco