Goo Gone.

It's citrus based and does not harm cured paint. We use it all the time in the manufacturing biz to get rid of tape residues on both wet and powder painted parts.

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Nate Stanley
(Currently Benzless)
1985 F-250 6.9l 170K
2009 SCION XB 36.5K
2003 LS430 78K
2012 Kubota B 2320