^Actually the stock fluid has a friction modifier. Either can be run but the LS is preferred.
http://www.motul.com/fr/en/products/recommendation
I run the LS in mine and compared to the non-LS which I ran in my last FR-S, the rear end is much smoother and a lot less chatter.
Hate to say it though, but you can get this in Canada. The main distribution center is in Vaughan.