No you must fill it to the level hole. And check your handbook - things have moved on since EP90. You should also make sure it's not an LSD, because EP90 won't do it any good at all!!.
PS - call at Life's and ask them if in doubt.
Edited by DaveW (26/04/12 05:24 PM)
Edit Reason: PS
2005 Red Roadster Series 1
2012 Yellow 4/4 2 litre 75th Anniversary