Hi gurus...I'll be heading back to my home country in 1 month's time. I will be detailing both my parents' cars. They rarely wash it and not to mention waxing it when I'm away for exactly 1 year. I'm not too sure what to start off with to do paint cleansing. Should I use Meguiar's Clear Coat Body Scrub to remove the contaminants first? Or should I use Zaino's clay bar to do the job? I'm thinking of using CCBS so that I won't contaminate the clay bar so soon. What do you think? 
After all these, I will use Autoglym Super Resin Polish and top it up with Extra Gloss Protection...hopefully it should be fine.
Thanks

After all these, I will use Autoglym Super Resin Polish and top it up with Extra Gloss Protection...hopefully it should be fine.
Thanks