I purchased a 2016 CX-9 in August of 2021. In September of 2021 I had the trans fluid changed because the trans was doing something weird. Only from a cold start, for the first ten to fifteen minutes, the trans wants to shift way too fast into a high gear. Moving out slowly, by the time I'm up to ten miles an hour, it's already looking for fourth. After the vehicle is fully warmed up, the trans functions perfectly - literally perfect behavior both up and down shifting, imperceptible shift from park into drive or reverse, no slippage, etc. When the fluid was changed in September, what came out was red and looked perfect, clear and no metal particles. On a quest to figure out the weird behavior, I took it to my local Mazda dealer, whereupon I was informed the trans fluid currently in the vehicle is the wrong fluid. Mazda fluid is blue. I verified with the faciIity that did the trans service they used MV fluid. I did substantial checking around and found one facility who suggested FZ fluid is simply ATF with dye in it to make you believe you need to buy it from Mazda. While that seems questionable to me, I do want to do the right thing. So - what course of action to take now? Keep the MV fluid in it and move on? Go through a series of three fluid changes to move from MV to FZ? Any light that can be shown on this will be sooooo appreciated, including any theories on what might be causing the strange (cold) behavior.