So recently I installed Chevron ATF+4 in my trans as it is about one third the cost of a more expensive alternative...biggest difference is that it is a little notchy for the first few [censored] early in the morning. I inquired at the Dodge dealer I go to (who I trust, and is quite reliable). Dodge dealer mentioned to put in some of the diff additive (the friction modifier). I am concerned that it may interfere with the soft metals (that MAY be found in my trans). I spoke with the shop foreman today and he spoke with the Dodge Tech who said it was OK, and that it wasn't going to cause any issues.... So I just want to know is it OK to add the friction modifier to my G56 trans (which normally takes ATF+4), and is it going to cause any issue down the road (manual trans and soft metal compatibility). The G56 is a decent trans to shift, but is a little notchy in the mornings...does that stuff contain any nastiness?