Yesterday I did a drain and fill on the 6F50 in my 2017 Taurus Limited AWD.
Drained out about 5qts of Mercon LV. Bright red and clean. No material on the magnet. In went 5qts of Valvoline MaxLife ATF. Car shifts as good as before. Some folks on Taurus forums do not like the MaxLife in their 6F50s and claim that the only fluid for them is Motorcraft Mercon LV. Although I've driven only about 50 miles, I cannot find any negatives of the MaxLife in this application. Also, at $17 per 4qt jug -- the price is tough to beat.
I am thinking I will keep on a 25-30k interval for the trans. Next up, PTU.
Drained out about 5qts of Mercon LV. Bright red and clean. No material on the magnet. In went 5qts of Valvoline MaxLife ATF. Car shifts as good as before. Some folks on Taurus forums do not like the MaxLife in their 6F50s and claim that the only fluid for them is Motorcraft Mercon LV. Although I've driven only about 50 miles, I cannot find any negatives of the MaxLife in this application. Also, at $17 per 4qt jug -- the price is tough to beat.
I am thinking I will keep on a 25-30k interval for the trans. Next up, PTU.