This article is from the Chrysler-Plymouth-Dodge FAQ, by Dr. David Zatz with numerous contributions by others.
Use ONLY what it says in your owner's manual to use. Many Chrysler
transmissions are NOT compatible with standard fluid! ATF+4
is usually the best one to use with automatic transmissions before
2001, ATF+5 after.
THIS IS AN IMPORTANT and very misunderstood issue.
You should really visit http://www.allpar.com/fix/trans.html if you have
a four-speed or five-speed Chrysler automatic. Even most three-speed
automatics are required to use ATF+4.