I think the OP doesn't want wax in his soap because it may make it harder to apply other waxes and 'ceramic' finishes. I have "the Last coat" and instructions state not to use other waxes on the surface before using it.What's wrong with wax?
My thoughts exactly
* Not sure about Gold Class and if it has wax added - I hate the Meg's Ultimate as windshield wipers smear / chatter after using ! ... This is why I was specific to request fav soap without wax added .There will be some product variation between stores throughout the country. The last time I was at Walmart in the auto detailing section, I picked up some Chemical Guys brand soap, it's highly concentrated and slick, I like it. Meguiars Gold Class is easily found and decent.
Thanks !!Gold Class has optical brighteners but offers no protection.
Purple Power Vehicle and boat wash works well.
Turtle Wax Max Power is another.
My "favorite" Walmart soap is Chemical Guys Mr. Pink or Citrus Wash & Gloss. Mr. Pink is simple, CWG is strong, slick, and really makes paint pop.