I don't deny the good experiences that many of you have had with this oil in your bikes, but for my '01 Bonnie, Rotella T6 has not been a winner.
My shifting quality has become tougher and notchier with the Rotella over the Mobil synthetic that was in it before.
It's cheap and it works, but the fact is is that it doesn't work well for MY bike.
I will be switching back to Mobil 1 v-twin synthetic or trying Motul 5100 in 2000 miles. I might even try draining a quart or so of the Rotella and throwing in a quart of the Mobil or Motul to see if that helps.