Today, even a non-professional driver can stop and start their car s engine as many as 18,000 times a year. Idling, with the vehicle stuck in traffic or waiting at an intersection is capable of causing microscopic wear and tear on the engine. In relevant industrial tests* the new product Castrol Magnatec Stop-Start 0W-30 D proved significantly lower engine wear in Stop-Start mode. The new product Castrol Magnatec Stop-Start 0W-30 D is based on smart molecules that adhere to metal surfaces forming an extra strong film that is permanently available and ready to protect the equipment at each of the critical Stop-Start stages. Castrol Magnatec 0W-30 D protects your engine from the first moment it starts and every time you start! * based on industrial test OM646LA.