Clay Bar Process Help!
First off, let me apologize if this is a repost. I'm new to this website.
I have a question for the pro detailers. I have an 04 325i (SilverGray) and I want to perform the Zaino process. Regarding the clay bar process, how many passes over a given are area are necessary? Should I go up and down with the bar, or only up, or only down, etc...?
Thanks a lot for your help!
I look forward to my first BMW detail!