This is always debated, I can tell you that on some engines, you'll get out MORE oil with the extractor than with the drain. The problem is finding one with the capacity for a V8.

__________________
2003 4.6is, Saphire Black on Black with Aluminum trim, Comfot Seats, Loading floor, Nav, TVonNav, Focal Utopia's in front, with Rainbow's in back, Helix 5 channel amp. ACS pedals, Aluminum steering wheel trim, X-pipe