So rotella is no good?
I wouldnt say that, I think just about any oil is is good enough.
For every day street riding any motorcycle oil will work fine as long as you change it, in my opinion, which dont mean ****, every 3000 miles, i think 8000 mi is too long.
Based on test results for equal money I would go with the mobil 1, it out performed the rotella.
Also read in another test report dino oils actually stick to your engines metal internals better than syn oils do.
as stated by evild, the more I read about oils the less i believe, i kinda feel the same way.
and as lankee mentioned he saw an increase in MPG with RP, this is definitely possible with syn oils and i think this is really the only difference any of us will ever notice in our daily use, you may see a HP increase in syn oils over dino, but you would need a dyno to prove it and even then there are too many variables.
Rp cycle oil had a significant drop in viscosity once heated and therfore have a low shear strength, creating much concern.