http://www.amsoil.com/lit/g2156.pdf
This is a "White Paper" I found very informative testing the different synthetic motorcycle oils. Being Syn3 is now $10.00/qt. and is associated with Venezuela, it's off my list. It looks like Mobil 1 v-twin and Amsoil rated the highest overall. Mobil is less expensive and therefore gets my nod. I'm going with Mobil 20w50 V-Twin in the crankcase, Mobil 75w90 gear lube in the tranny and staying with H-D Primary lube in the primary. If nothing, else I'll enjoy the savings over Amsoil and Syn3...about $2.00/qt.
.gif "Wheeldock.com")
