Ok it sounds like it is tranyfluid with a few miles on it. It has some metals in it, as the transmission and fluid gets mileage on it this is normal, this is why the fluid and filter should be changed every couple of years. The way I check fluid out is with the chart below as when trans fluid goes bad and the trany is having problems the fluid color changes. So here is the chart that I use. The numbers are in parts per million.
Transmission fluid chart. what color is yours?
Wednesday, February 10th, 2010 AT 9:54 AM