ok, i know that we are supposed to have the Mopar MTX fluid in our trans. i just got a rebuild, (it is leaking a little) but it's pink/red. i called the shop and he told me that ATF+4 is what he put in it (after a lot of confusion and calling chrysler)

i know it ^works^ but is not the best, how long will my trans last on it? i know that the MTX fluid is much better for it. But the shop said that the ATF+4 is a way to fix a certain sound that this kind of trans makes.

the trans has never shifted better or felt better ever! but what harm could come of this? should i ask the guy to put the MTX fluid in instead? this shit seems to be working great, but for how long?