I picked up 9 qts of Redline D4 atf today. Pulled drain plug, replaced, added atf and drove around the block. Did this 3 times. Car has 101k. I had the fluid flushed this past spring and it looked black after the first drain. Second drain was slightly better and last drain was pretty red. I'm looking for a trans cooler and filter for the next fix.

 

How's the tranny shifting with redline compare to oem? As for a transmission filter I am using a Magnefine filter .