I am about to drain my AT fluid, and I would like to know what type to fill back up. The fluid was brown with a very slight red tint when I changes ATF plug which leaked. I have 235K and have had fluid service once by an indy shop specializing in Benz and bmw's. He changed the filter cleaned the screen and placed a magnet in the pan. I have had the auto since day one and that is the only time the service was done. I was looking to find out if there was some special AT fluid or could I buy off the self and what type or name brand would be the best. It does not leak since the new plug and seems to sift OK but I was worried about the color of the fluid? Do I need to add any conditioner? Thanks, MBD