Jeff,
You probably already know this from your paint experience, but used to own twin supercharged 1997 and 1998 bonnevilles. One was black and the other white. My white one was so hard to keep white. Little flecks of random whatnot would build up on the paint all over and slowly it would just look off color/yellow hued instead of that brilliant white. I finally realized how incredibly effective clay bars were. Once I started claying my car a couple of times a year, I was sold. Removed tar, sap, bugs, junk. Running your fingers over a clean car before claying and then doing it again after claying tells the story. AmaZing stuff and safe for your paint.
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