I sell Amsoil and this is what I have been using in my bike.Sheriff said:Chap,
I am about to change to the Amsoil products myself. My research has convince me to proceed with the MCV 20W50 for the crankcase and primary and use the Amsoil Heavy Duty 75W90 Tranny fluid in the transmission.
However, I think even if you use Amsoil's 20W50 in all three holes you will be better off than using the SYN3 product. Again, this is the conclusion I came to after a fairly significant internet search.
You might want to ask this same question in the "Engine Oils and Lubrication Forum" above!
Summer months
MCV 20W-50 (engine and primary)
SVG 75W-90 (transmission) Might go to 75W-140 this summer
Winter
AME 15W-40 (engine)
MCV 20W-50 (primary)
SVG 75W-90 (transmission)
Mobil 1 works better that the other stuff at the stealer. I case you are low and need to add while out of town.