Never seen any published JASO list containing 323 oils certified to defeat wet clutches either...
What in the Heck are you talking about, there is no standard to defeat a wet clutch, cause its a stupid statement.
There is only a frictional gate to offer grip for a wet clutch, Jaso Ma MA2 ratings
Will an Jaso MB rated oil cause issues in some cutches on the limit of design capability? Absolutely!
Are there oils not rated as Jaso Ma Ma2 that actually work as well or significantly Better, Absolutely!
Im been very pleased with Mobil one super 1300 15w40, and its been tested with a High stressed clutch pack on the limit of capability, which means it will work very well with ANY motorcycle wet clutch , fear not.
People dont seem to realize, how much mechanical load a clutch Pack can take, will effect which oils can create mild slippage issues.
That mechanical load is going to vary amongst Motorcycle models.
