Rotella T5 10w30 + CB1100 = HAPPY!!!

[Ollie]

A side note:

Curious as it might seem, the Moto Guzzi V85TT requires a JASO MA/MA2 SAE 10W60 engine oil, even though it uses a dry clutch.

I wonder what their motive is?

I don't know? Maybe Piaggio just feels they should spec JASO MA2 in all their motorcycles?

Since the V85 and my California utilize a dry clutch I had no problem with Motul 8100 10W-60 (on sale) which is for high performance cars (Ferarri, Porsche, Maserati, etc) which also have dry clutches. For wet clutch bikes spec'ing 10w-60 I'd use Motul's less slippery 7100.
https://www.fcpeuro.com/products/10w60-8...soEALw_wcB