I use Amsoil (MCV) 20W-50 HP Syn Motorcycle oil & Amsoil SMF103C oil filter.

http://www.amsoil.com/StoreFront/mcv.aspx

Tom

Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety. Benjamin Franklin, US author, diplomat, inventor, physicist, politician, & printer (1706 - 1790)