A new no-harm application test for additives in fuels is to be developed by OWI Science for Fuels gGmbH and the Chair of Piston Machines and Internal Combustion Engines at the University of Rostock in a joint research project. The increasing use of new climate-friendly biogenic and synthetic fuels and fuel compositions will require a large number of new additives, which in turn will have to be subjected to conscientious testing in accordance with no-harm criteria.