I ran thru white road paint the other day and I got most of it off with bug and tar remover but I still cant get it off the back.What else can I use?What about a little gas or paint thinner?

I had some on my old E46 and a clay bar did the trick. It wasn't coming off easy but I did work it a while until it all came off.

Yeah try some clay first, if that does not work you might have to polish the area with a PC to get the rest off.

Clay Worked great!!Got almost all of it off.