Check engine oil on BMW r1150rt - 2002 BMW R 1150 RT (ABS)

Do you have the owners manual for your R1150RT? It lists some viscosity ratings and classifications.

Personally, I would suggest any high quality 20W50 engine oil for your bike. You can use a synthetic if the engine is fully broken in (over 10,000 miles) I use Castrol Syntec in my machine.

There are many choices... since the oil only lubricates the engine on these bike and is not shared with the gearbox.

Hoep this is helpful!

Yes, is the short answer to your question. The BMW R1150RT engine will run and be protected quite well using a quality oil of viscosity listed in your owners manual. I would suggest a 20W50 for most applications.