I have a B2250 I just bought. I am changing fluids, greasing, adjusting etc. I am confused by the site glass to check the Trans. Looking into it the background is a tan color all over. So it is either very low or over full I imagine. My question is... what color should I be seeing? If lower than the glass should I see tan or if over full should I see tan color. It has been run for years with the current level with no leaks and working fine so I don't intend to mess with it BUT trying to figure what I am looking at. Also is this checked with it hot or cold. THank You