I had some warranty work done on the transmission on my 2008 mazda 3. With the work they did they had to refill the transmission. I believe they replaced a "shift speed sensor" anyway I noticed when I checked the dipstick the fluid they replaced in the trans is not red. I know for a fact it was red and it was factory filled. I believe the right fluid is type mv (m5) the oil in it now is a gold color could that be mercon v? If so how much damage can happen to this 5 speed auto with the wrong fluid? It is still under factory warranty and it does seem to shift fine. Should I be worried or just leave it? Thanks!