Castrol Magnatec 5W-30 C3 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C3, API SN/CF or earlier specification 5W-30 lubricant. Castrol Magnatec 5W-30 C3 is approved for use in a vehicles from a wide range of manufacturers, please refer to the specifications section and your vehicle handbook. Castrol Magnatec 5W-30 C3 has been specially formulated to deliver outstanding protection for the latest engines fitted with after treatment devices such as diesel particulate filters and 3 way catalysts. Up to 75% of engine wear happens while your engine warms up. When the engine stops oil drains off critical engine parts, however Castrol Magnatecs intelligent molecules dont. They cling to the engine like a magnet providing an extra layer of protection. Castrol Magnatecs unique formulation protects from the moment you turn the key, dramatically reducing engine wear. Now with ultra-refined molecules, for protection you can see, hear and feel.