I'd like to replace my tranny fluid with ATF +4. The garage at the end of my street, who I know does generally good work, can pump all the fluid out, drop the pan, change the filters, etc. for $170. When I told him I wanted to put +4 in, he said they had it and could do it. But, I thought that you could only get REAL +4 fluid from Chrysler dealers, since they have some sort of patent on it (I believe that's what the parts guy at my dealership told me, and I think I've read that on this site). So, can this privately owned (non-dealer affiliated) garage actually get its hands on the real stuff, or is he trying to sell me a cheap knockoff (or perhaps the guy on the phone just didn't know the difference)?