Agentsmurf

Hi guys, need some advice about taking a cd on a minor over landing trip. The dealers reckon the only fuel for a diesel is 50ppm, was wondering if 500ppm would be ok for 2000km or would it just mess up the injectors. Was considering buying a CS instead as they seem to have better tolerance for lower grade fuel. I realize most people would shun the idea of using their pride and joy in such conditions, but it's not that easy to get 50ppm diesel out here.