The correct fluid for your 04 is T-IVHi Everyone,
I have a Sienna '04 XLE AWD with about 100K miles (163K KM) on it. Checking the Transmission fluid dip stick for oil color, it was found to be very dark, almost black. I have not noticed any abnormal thing in shifting but concerned with the color.
I understand it uses WS type oil (still need to confirm from the dip stick embossing) but not sure if the healthy color should actually be a dark reddish shade rather than the black I see.
The vehicle history I got from the Dealer (from Toyota database) mentions twice something about "Trans" oil/fluid change. 1st @ 45K miles and 2nd @ 83K miles.
I am not sure if this reference for "trans" means Transmission or Transfer case.
Appreciate if somebody in forum can suggest what is best to be done at this time?