+1 on the Rotella for my V-twins. It's a great oil, and can hold up to the heat and pressures. When I ran vehicle oil in a motorcycle, the biggest thing I avoided was a little circle on the back, you wanted to make sure it didn't say something about energy. I will try and stop by autozone and show the 2 different circles.
When I ran Mobil 1 in the CBR, it was 20W50. I currently run rotella T6 synthetic