I have a question a two brands of waxes. On my black car, I've only been using Meguiars Gold Class paste wax. I am happy with the results I get. When I was at Wal-mart the other day, I saw that they had Zymoil (i think thats how you spell it) and I have heard great things about this wax. Can it compete with my Meguiars wax? If I do go with that wax, should I wash my car with Dawn soap then wax, or just use my usual Meguiars Gold Class carwash soap then use it? Thanks for any info you give me.