JASO T 903 standard: MB

[msch]

I have a PCX 150 year 2016. The Owners manual states that the motor oil must be API SG or higher, SAE 10W-30 JASO T 903 standard MB.
I only found in shops (I live in Chile) JASO MA2.
Which JASO is better, MA2, or MB?
What could happens if I use JASO MA2?
Thanks in advance for the technical clarification.

[iceman]

You do not need MB as there is no wet clutch - any good fully or semi synth 4-stroke is fine - rating or oil i.e 10w30 or 10w40 dependant on temperature (I assume Chile does not get too cold any time in the year)

[gn2]

Always use the slippery type of oil, the sticky stuff is no good.

[msch]

Thanks for the replies. I found a good technical explanation. The JASO T903 Japanese standard is appropriate for motorcycles which have integrated in one case the motor, gearbox and clutch. JASO MA2 is better that MA1.
JASO MB does not match the JASO MA (1 or 2) and it is not appropriate for motorcycles with wet clutch integrated with the motos and gearbox.
JASO MB has been designed for scooters that do not have wet clutch and is better than normal 4-strokes motor API 10-30 is good for tempetatures in the range of -4 to 110ºF (-20 to 45 ºC).
API 10-40 is good for tempetatures in the range of -4 to 122ºF (-20 to 50 ºC).

[you you]

Thanks for the replies. I found a good technical explanation. The JASO T903 Japanese standard is appropriate for motorcycles which have integrated in one case the motor, gearbox and clutch. JASO MA2 is better that MA1.
JASO MB does not match the JASO MA (1 or 2) and it is not appropriate for motorcycles with wet clutch integrated with the motos and gearbox.
JASO MB has been designed for scooters that do not have wet clutch and is better than normal 4-strokes motor API 10-30 is good for tempetatures in the range of -4 to 110ºF (-20 to 45 ºC).
API 10-40 is good for tempetatures in the range of -4 to 122ºF (-20 to 50 ºC).

I think icemans comment covered it.

(Other than the Chile comment)