Specs for their oils are not that impressive. I found some data from a forum off of their website. They have someone respond to questions(towards the bottom it will say "motul" underneath the question posted).
HTHS 3.66, Noack 9.8 (For their 0w-40). It's not bad, but has nothing over the M1.
Here is the Link: Motul Specs
Their 5w-40 has a HT/HS of 3.6 and a Noak of 11%. Not that impressive.
Amsoil AFL - HT/HS of 4.2 Noak 5.5%.