I'm not forgetting anything. I know how the machine works. Sorry if my description of the T-tech wasn't clear. The machine we used ONLY uses the trans fluid. It does not use any external fluid or detergents. You pump the cylinder with new ATF and when the car pumps fluid towards the cooler it goes through the machine and pushes the cylinder which in turn pushes new fluid into the cooler. No extra detergents, no extra fluids.
I'm glad you've had good results with your method. The T-tech does exactly what you are doing. Old out. New in. No external power. No extra detergents. The machine just makes your way closer to idiot proof by connecting right to the cooler lines and using the car's own pump.
Like Sasquatch, we had people with old smelly dirty ATF insist on pan drops and just changing that relatively small amount of fluid caused more problems than it fixed.
---------- Post added at 05:51 PM ---------- Previous post was at 05:45 PM ----------
Because the fluid is a good red and smells/feels clean, I am going to at least drop the pan and replace the filter while doing your external filter mod. I will also do the maintenance from one of Jay's posts with the new accumulator pistons, boost valve, separator plate, and PWM delete valve. Hopefully this will all lead to a longer trans life.
, I guess I'm confused then. You don't have access to the machine anymore, so that doesn't matter, your fluid is not dark and smelly, so that no longer matters, your fluid is red smells and feels clean, so what is the issue with not replacing all the fluid and just what's in the pan? In the link you posted Jay said it should be changed. Sasquatch said it should be changed. Why not change it all?
