That's all I use. Since I worked at Dodge dealer for 24 years and did trans work I have a small stock of ATF+4 and its all I use in all my Mopars as does my brother. Is it the best ?? Depends on who you talk to most of the time but it works great for me. I have it in my 63's trans and my sons Dart and both are still working like new. The Dart has been on the road since 1997 and my 63 since 2006. Course back in the 90's it may have been ATF+3 that was in the Dart at first. But they still shift nice and firm and fluid is a good color and we have never had a trans failure in any of the cars. So I use it in all my Mopars. Ron