Tar removal is normally an unpleasant experience, because strong solvents are involved. Stjarnagloss used natural orange oil in their Tjära tar remover though, so you’ll find the experience as enjoyable as the results themselves.
Just spray onto the tar spot and allow to dwell before buffing with a soft cloth, or spray onto the cloth directly and then gently rub the tar away.
Also works on wheel weight and sticker residues.