Hi to all, I'm new to the forum and live in the UK. I have sat at my PC for a week now, (sad, I know) viewing nearly all posts in an attempt to understand my 2012 RS.
I don't know about the USA, but here in the UK, we use Shell Ultra 10W40 fully Synthetic.
It's API SM & JASO MA2 and It's the Shell recommended oil for Can-Am Spyders.
Oils have changed since BRP wrote the manual, the latest API SM oils for motorcycles now contain friction modifiers for wet clutch machines and do not cause slip.
By the way I envy your gas prices, here in the UK it works out to $9.53 a gallon for unleaded
Lucky you. The Shell European products are not available here, such as the Ultra. From everything I've read about it, it's great stuff. Oils can meet SM and JASO MA2 at the same time as Shell Ultra proves. BRP seems unaware of the JASO MA specs and so just specify not to use SM oils. If they knew about JASO maybe they'd change their spec accordingly.
Unlucky you -- nice gase prices!