Just had a local tranny shop do the filter TSB on mine, since the stupid a## tech at the dealership can't read a Julian date and kept telling me my VEHICLE build date didn't match the TSB (it's the tranny build date).
Sure enough, they found the defective "AB" suffix filter inside and changed it out.
They also reported the same thing, instead of 5 quarts to refill, it took 3 test drives and 9 quarts to finally get the beast topped off.
If you read the TSB and the reason for it being done, I believe I know why it takes the extra 4 quarts. Supposedly the defective anti-drainback valve in the cooler return filter is allowing the torque converter to drain down overnight. Therefore, it stands to reason if you remove the filter during servicing, it's going to allow the torque converter, cooler, and lines to drain down - you're having to replace the 5 quarts that came out when you removed the pan, and another 4 quarts that drain out when you remove the cooler return filter.
Bloody good thing I'd given them a whole case of tranny fluid.
Whoever wrote up the fluid capacity tables in the owners manual, service manual, and TSB really friggin screwed up!
