i recently brought home my new to me 06 3.6l with 66k miles. i usually do all the fluids when aqcuiring a new vehicle. i did a drain / fill with mobil1 synth atf and filter. the fluid was a bit dirty and the filter looked like it was time. there was the usual coating of slime on the magnet in the pan. the past couple of days i have been noticing some slightly odd downshifting and sometimes when coming to a stop, i will feel what feels like the trans shifting down the last couple of gears( maybe 10 seconds after being compeletely stopped. should i try doing a hard reset on the ECM / TRANs computer to see if the trans will adapt to the new fluid? i had pretty much thought 66k was not high milage for this type of service
also , would it help to add a trans additive? any of that trans -medic stuff etc etc?
also , would it help to add a trans additive? any of that trans -medic stuff etc etc?