Personally I feel it was Ford's cheap way of trying to fix a Oil Pickup Tube uncovering problem. Instead of invest more funds in a new oil pan with special traps and so forth, they opted to stick this cover on the oil Pick-up tube, which in essence limits or cuts down on the total area needed to remain submerged in oil. By doing this, the worries of the oil pump loosing it's prime are greatly diminished. I'm thinking fairly aggressive driving, high corner loads and fast acceleration. With a smaller footprint available, the likely hood of being uncovered during a spirited run is lessened. The Oil pump pick-up still has the same tube diameter but sports a hood limiting the screened area at the bottom (capacity), but better oil control under harsh driving dynamics. Personally, I would ditch the new Oil Pick-up and a go to the older, more wide open model...I feel it will flow more oil, with less total resistance then the new style pick-up tube and that would be my objective with a pick-tube. Oil control is not part of it's job discription...so I would opt for a oil pan that does the job needed in that department, and keep the oil pick-up tube limited to actually picking-up the oil needed for the oil pump. It probably does not matter much on a street, OEM application...But I would rather have full capacity on the inlet side of my oil pump for most other applications.