I think my atx may already have some problems, when i was dumb, i tried neutral dropping it and it just shuttered and didn't move. i was wanting to switch to mobil1 syn atf, but with 86k+ miles and possible problems, is this a bad idea? what should i do? and if mobil1 atf is still a good thing to use, where can i get it? (haven't been able to find it).
