If Monokote is applied properly fuel residue won't cause it to lift. It's all in how it's put on. I have planes coverend in monokote that have over 400 flights on them and they still look as good as the day I did the maiden flight. Any covering will come of if not applied properly, and this is especially true for paint. Really, it all just boils down to doing it right no matter what covering is used. That usually just comes from experience.

Ken