Castrol MAGNATEC Hybrid 0W-16 is suitable for use in automotive gasoline and hybrid vehicles where the manufacturer recommends an API SP, ILSAC GF-6B or earlier specification 0W-16 lubricant, including hybrid engine. Castrol MAGNATEC Hybrid helps protect against the specific issues that challenge hybrid engines. Its unique DUALOCK Technology Clings like a magnet and Locks together, forming a powerful forcefield of wear Protection, providing 50% better protection from low temperature and re-start engine wear.