I thought the DMD made a night/day difference with NVH at high rpm's -- nice and smooth at 6000-7000rpm.
In reguards to oiling / over-oiling... I've been autocrossing this powertrain (Cougar Feb 2000-2003, Contour 2003-current) with 1 extra quart and haven't had any oiling issues. There have been 2 courses that I may have altered my angles because of long right hand sweepers though.
