is the trans fluid in the fj's dex iii or dex vi or maybe even something else? owners manual just gives some toyota part number that doesn't mean sh*& if you don't call the dealer. the new dexron vi has been out in the auto parts stores for a while now. anyone know if toyota recomends this change? gm is recomending this for all of their vehicles that use dex iii in the tranny's. i have done it in my avalanche 2500 and noticed a great shift improvement but i'm not so sure about changing it in my 07 fj yet. i'm still trying to get used to that dam downshifting the fj auto tranny does.