Originally Posted by fireman.peter
I asked BMW in Germany,
what oil is recommended by the motorcycle manufacturer.
I received the following response:
oil recommendations were sometimes updated / extended.
In general please use an oil according to the owner’s manual!
Important here: a few weeks ago we also released the 15W-50 (“BMW High Performance Oil”) for the 800cm-ROTAX-2-Cylinders.
BMW has not released fully synthetic oils for the 800cm-ROTAX-2-Cylinders!
The translation of that is:
"We just made a new contract with the lowest bidder, and we have a new
oil for you, different box and label from the original manufacturer but marked
up at least 4 times."
I'd just stick with the 15W-50 recommendation and use any reputable