is is ok to run the bike when the oil window is completely filled (bike standing leveled and straight, of course) ?
:+1: I always make sure my level is somewhere in the upper 2/3's of the window...Gen2 should take 4 QTs (w/ filter change) to the top of the window. No problem at this point, since "normal" mid window is about 3.9 QTs. Pretty much ok anywhere in the window.
If you really have a 1/2 QT extra in there you should let a little out. Be much easier to let out the filter, than the drain bolt.