Castrol Magnatec A3/B4 5W40

Up to 75% of engine wear happens while your engine warms up. When the engine stops oils drain off critical engine parts, however Castrol MAGNATEC’s intelligent molecules don’t. They cling to the engine like a magnet providing an extra layer of protection.
Castrol MAGNATEC’s unique formulation protects from the moment you start, dramatically reducing* engine wear. Now with ultra-refined molecules, for protection you can see, hear and feel.
Castrol MAGNATEC. Instant Protection From The Moment You Start.
*As tested in the industry Sequence IVA wear test.

• Castrol MAGNATEC 5W-40 A3/B4 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA A3/B4, A3/B3, API SN/SP or earlier specification 5W-40 lubricant.
• Castrol MAGNATEC 5W-40 A3/B4 is approved for use in vehicles from leading manufacturers, please refer to the specifications section and your vehicle handbook

Castrol Magnatec’s Intelligent Molecules:

• Cling to critical engine parts when the oil drains down
• Cling to your engine forming an extra layer that protects during start up and beyond;
• Bond to metal surfaces to make engine parts more resistant to wear;
• Are combined with synthetic technology to provide increased protection in high and low temperature applications;
• Provide continuous protection for all driving conditions, styles and temperatures;
• Castrol Magnatec 5W-40 A3/B4 delivers superior performance under extreme cold start up conditions relative to thicker grades

• ACEA A3/B4
• API SP
• MB-Approval 226.5/ 229.3/ 229.5
• Renault RN 0700 / RN 0710
• VW 502 00/ 505 00