i had my tranny oil changed at one of those quik lube places and now i notice that when i am going 40-50 mph my tranny slips a little . should i ensure they used mopar atf+3 ? change it to atf+3 ? or is there other problems ? Thanks for any reply.

yes!!!!! - yes!!!!!! and maybe now if they put dextron or mercon in it.

I take it that it was ok before the service.

Get it checked as soon as possible.

JD

I Dont have much faith in Quick Lube and the Like. I know some hire there Techs with No or Litle Experence. Better to do it your self!