To get the glue off u can use this http://www.turtlewax.com/main.taf?p=2,1,4,11 best product ever, I am like addicted to. takes anything off in like 10 secs, glue, sap, those black tar specs plus like anything else u need off your car. i prob go through a bottle a week.
really? i saw that bottle the other day when buying my wheel and tire sprays and the display didnt look attractive so i didnt bother to get one. but now you mention it, i might go get it.
