Special 5W-30 C1 is a high performance low friction oil for the latest models of passenger cars and van motors, which are operating with diesel fuel or gasoline. The lubricant, formulated with base oils from the synthesis technology and additives of low ash, low phosphorus and low sulphur (low SAPS), was developed in particular for engines with diesel particulate filter. The low amount of ash forming additives also increases the efficiency and lifetime of three-way catalytic converters of gasoline engines an of other exhaust after treatment devices.