So, Bought my 07 3.5 last year and have put maybe 8k(192k) miles on it..Runs strong and shifts fine. I know the person I bought the car from said she never had the transmission serviced, so I'm thinking I need to get it done sooner rather than later. Got a quote from my families auto care center of 125 to drain and refill, but that's using Valvoline.. Can someone link me to what I SHOULD use in this instance? Figured id ask here before I went with what they advised. Ive seen old threads on this but none had links, and most aren't open for comments, soooo. here I am 
Thanks!
Thanks!