Dunno, should be fine, oil's oil, as long as it doesn't have friction modifiers.
I use castrol syntech in the 6r, dunno why though, I use mobil 1 in the car, but always been syntech in the bike. I think it's because of that commercial they ran a few years ago, you know, where they fill one engine with syntech oil and the other engine with regular oil, then they drain them, and run them, and they syntech engine just keeps running and running and running and running, and then dennis leary shows up and is like "fuck you all I use syntech" or something I don't remember but the point is that engine ran without oil for a long time just because they used syntech that's pretty bitchin if you ask me I'm a sucker for marketing
