We used to have a member here who worked for Meguiars, his monika was MikeInOrange. I have not see him on here for ages, 2007 was his last post according to the records, but that seems too long ago.
He had all the answers, he said Dawn washing up liquid got the polish of the car back to bare paint.
I followed his words like a bible, he was very helpful, maybe he has switched to Facebook.
We have had some excellent people here who had excellent advice all the time, but nowadays as most subjects have been covered over and over things are a little boring, there is enough info here to write large books on oil and batteries and all of it could be reduced to the size of a couple of the earlier posts.