Hi all my fellow Cannondale lovers:-)!

What type of oil does the Lefty Carbon SL comes with from the factory - viscosity?
Can I fill for example a wt10 type fork oil in it? Or does it have to be a specific kind of oil?

My new Lefty Carbon SL does only seem to have a very small variation in rebound, and also have a tendency when it rebounds to top out (the opposite of bottoming out) - what might be the cause of this?

Best wishes
Lars from Dernmark