When you do a drain and fill of your CD4E transmission in older Escapes (2003 is what have), there is still about 6 quarts of fluid left in the tranny. If the transmission has the older Mercon fluid in it, can you mix this with the newer Mercon V? Or, does the transmission have to be completely drained and refilled with the required amount of the newer Mercon V. I think the CD4E trans flluid capacity is 10 Qts., not sure though.

From what I have heard, Mercon V is thinner in viscosity than the old Mercon, just wondering if this will cause a problem since the transmission is used to the heavier weighted Mercon.