The Motorcraft finewires don't have platinum tips on the side wires so I don't believe that they work as well. Ford says they do work as well. Autolite has just started marketing their own finewire plugs. The correct part number for the one that fits out V6 is XP104. The Autolite finewire plug does have a platinum side wire. So far, the XP104 has been a bit pricy, but if they come down in price I will probably use it next time I change plugs.
As I said before, the best bang for the buck is the Autolite double platinum APP764.
