Synthonoil energy 0W40 super energy-conserving full synthetic viscosity. Promotes rapid oil deliveries in the engine. Optimum engine lubrication from the first turn of the engine and significantly less wear. Considerable savings in fuel during the cold phase. Due to the lower frictional resistance caused by super-conserving is considerably lower. For optimum engine cleanliness. Tested on catalytic converters and turbochargers.