I'm also a fan of Shell Rotella. It's non-detergent
Rotella IS a detergent oil! In fact, diesel specific oil has more detergent than standard oil, due to the dirty burning fuel. 
+17

Finally oil talk!!

I have read about diesel oils with their zinc content AND the detergents that clean the zinc off.
Modern oils have less zinc due to the catalytic converters.
I wonder how modern bikes use the good Spectro and Redline oils when they have cat's that must be short lived when zinc content is 1900-2450ppm.
I guess the vehicle inspections do not test motorcycles as cars .
That amount of zinc is good for our old bikes. Plus good viscosity, not too thin.
I have ordered zinc in small bottles for my oils with low zinc content.
https://ebay.us/m/oMpKDHNot too much either.