JASO MA/MA2 VS JASO MB, does really matter on scooter ?

[TrialKid]

Manual says JASO MB 10W30 on a HONDA SH 150 2025 model

Is dry clutch CVT, with NO oil filter (just an oil screen) and takes 800ml.

If I add JASO MA/MA2 is there any PROS and CONS ?

Same oil says needs for the gearbox (seperate) JASO MB 10W30

Thanks in advance

 

[NiwradND]

I use Rotella T6 in mine. 5w40