So the Tranny fluid in my 2006 Accord I-4 has been in there for exactly 20k since the last change, and today, I did do the 3 time drain and fill.

Problem I'm having now, is that First to Second gear isn't exactly smooth. You can definitely feel it going from first to second..

I feel it more than before the tranny fluid change. Is this problem going to get worse? Will I end up needing a new tranny? The fluid has been changed every 20k so far. All of the other gears are smooth, except from First to Second. Car has 89k as of today.

 

Wow so you have to fill the trans and drain it three times? Isn't that alot of fluids?

 

I would have thought draining and filling the transmission fluid 3 times as recommended by a lot of people, would benefit me. Didn't really seem to..

The last time the tranny fluid replaced however, it was replaced with ATF-Z1 fluid. And today all of that Z1 fluid was switched to the DW-1 Fluid. But I've read that those are interchangeable... still don't know what the hell is going on.

 

ONLY use the Z1 or redline maybe amsoil. But SERIOUSLY ONLY EVER use Z1 with your k/j auto trans. And install a cooler. Oh and change your filter too. Seriously change your filter.