i read somewhere that all the f series are mazda made which were also put in some ford cars. i'm thinking all f engines were made in japan too?(if u look around good enough, u'll notice some japanese kanji and hiragana so even more so it was made in japan.) i believe ford had their own engines, the duratec or ecotec..i forget haha not a big ford fan. btw ur fs is made by mazda. also dont be surprised u might find a few small components made by ford in the engine. i think in my p5, the diagnostic module is made by ford haha. heh kinda like finding toyota parts in a GM car. <- i think the malibu(corolla looking one?)