Today’s sophisticated emissions- reduction technologies need cleaner fuels. In fact, substances like sulphur can disable clean auto technology. The vehicle industry strongly urges all parties involved to ensure early, global availability of high quality fuels. Vehicles and fuels must be seen as a single system in a global context. We recently revised the World-wide Fuels Charter to recommend sulphur-free fuels. This Charter contains clear specifications for gasoline and diesel that should be globally respected as soon as possible so new clean technologies that benefit the environment can be widely introduced.