this is the reply I just got from shell Canada. the bottom line IMHO is
if it don’t have the JASO-MA certification on the back , don’t use it.

Hello,

Please be aware that only Shell Rotella T6 5W-40 meets JASO MA specification and can be used for your wet clutch application.

Shell Rotella T6 0W-40 does not currently meet JASO MA and should not be used in you wet clutch application.

Kind regards,

José Meilo

Shell Technical – North America

Email: Shelltechnical-CA@shell.com

Toll Free Tel.: 1-800-661-1771