can I use Mobile 1 in my Mean Streak ? my manual recommends API SE, SF, or SG type oil and Mobile 1 is Cl-4 what does it all mean?

 

I'm not sure about your bike, but I've been running Mobil 15w-50 in my ZRX for about 38k miles. No problems with clutch slippage,
tranny noise. It shifts so much smoother. I can tell when it's time to change oil because it gets a little harder to hit.

Pretty much any oil is ok, just as long as it's mpt an energy conserving oil