trans fluid

[skorski]

50 k and I need to change transmission and filter fluid . Amsoil in it now , transmission has 120,000 miles lots of towing 12,000 lbs. Should I stick with amsoil or is mopar syn just as good??? Thanks Ski

 

[JHumphries]

My philosophy with automatics is if it's working DON'T CHANGE ANYTHING!
You can never really drain all of the fluid out, so why risk having some wierd incompatibility of fluids.
Stick with the stuff that has kept it healthy.

 

[cerberusiam]

ATF+4 is better in some ways than anything else. If the Amsoil is working and you change it at least once per year then stick with it.