I own a 1998 ZJ and I know it takes the Chrysler 7176 ATF+3.I wanted to switch to Synthetic and was going to get Redline 7176 ATF+3.It's a lil pricey @ 7.95 a qt. But I was in Napa the other day and the they showed me the Valvoline ATF+4(Synthetic@4.95 a qt.) and told me that ATF+4 is the new replacement for ATF+3.He even went as far as calling a Valvoline Rep. while I was there to make sure that I could use this in my Jeep.Anyone?