Resumen del autor, extraído del trabajo. New diesel specifications, particularly those expected beyond 2005, will introduce limitations on a number of diesel properties, other than sulphur, like poly-aromatics or total aromatics content, cetane number/cetane index, back-end distillation temperatures and density. Possible implications are discussed on the basis of the European Union specifications for diesel for the year 2000, the World Wide Fuel Charter (both given in Table 1) and Germany’s plans to offer tax incentives to phase in 10-ppm sulphur in diesel by the year 2003.