Hi everyone. Good information here, thanks. Just a question here.
My 2010 TC has 93000 miles on it, no clue of past transmission service. Fluid doesn't look overly dirty. Was planning on dropping the pan and changing the filter, and just replacing what fluid came out. I'd like to change to Valvoline synthetic ATF but don't really want to go through all this, will topping off with synthetic be compatible with what's in the converter? I expect to be doing this a couple times a year, so it shouldn't take too, too long for a fairly complete changeover.
I bought it at 88K, don't do any heavy lifting, about the biggest job it has is about a 5 hour ride on the interstate occasionally. Right now the trans shifts good and doesn't do anything funky.
Thanks everyone.