ive noticed that most ford owners are very adamant about using motocraft parts im not one of them. ive searched all the forums and cant find a definitive answer. im doing a filter change pan dump and am wondering if I can refill with Dexron vi most forums and oil manufatures state that dex vi is low viscosity and suitable for mercon lv but my converter will still have some mercon lv in it and I don't want to cause anyproblems.