We have a new car just a few months old. The first thing I did was clay and wax with a good synthetic wax. The few times it has been washed I followed up with TW Seal & Shine. The paint is in excellent condition. It is garaged and has no water spots or paint swirls. I wasn't aware of Griots 3 in 1 ceramic when I did this. Also, our local Walmart doesn't carry the Seal & Shine anymore. Thought I would give the Griot's 3 in 1 a try since I have some speed perks I can use from Advance Auto. My question: Can I use 3 in 1 ceramic wax over the existing products or would I have to clay again or do something first before using the 3 in 1 ceramic wax? Does using clay remove old wax if that step is needed? I'm like several others here on BITOG that's getting up in years and it's getting harder for me to wash and wax as much as I would like to (the first clay and wax took me two days). I've read all the threads I could find on BITOG about Griots 3 in 1 and it's a mixed bag to me concerning surface prep from other members.