A friend of mine is running Motul 7100 10-60 in his 2018 1200RT specifically to quiet down the engine. I wonder if it would work in the new 1250 engine. I know it isn't the correct oil that BMW recommend but he just didn't like the noise were all used to. He said a BMW mechanic told him to use it as that's what he uses in his own bike. He said it's made a world of difference.