Just completed the transmission fluid change, and also flushed the power steering fluid, I used Castrol import MV fluid, vehicle runs nice and smooth, and the power steering is a bit easier with turning, etc. No complaints at all, and nothing negative to report. I too did some extensive research and found that the Castrol import MV fluid is comparable to the OEM fluid, and so is the Valvoline synthetic, both were available yet the Valvoline was about .50 cents cheaper (which is odd that synthetic would be less lol), I Opted to stick with the Castrol brand because i've used their fluids on all my other vehicles and trust the brand. I figure if Castrol holds up to OEM and handles well then i'll stick with it, if not I can always do another Flush and just add Valvoline synthetic at a later date