Traffic congestion has increased dramatically; today even a normal driver can stop and start up to 18,000 times a year. That’s annoying, but worse, it slowly damages your engine – permanently.
Uniquely, Castrol MAGNATEC’s breakthrough DUALOCK molecules cling to critical engine parts and lock together to:
- Form a powerful force field of protection
- Dramatically reduce both warm-up and stop-start wear by 50%
- Deliver unique patented protection designed specifically for modern driving
Non-stop protection from every start.
Application
Castrol Magnatec 5W-40 C3 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C3, API SN or earlier specification 5W-40 lubricant. Castrol Magnatec 5W-40 C3 is approved for use in a vehicles from a wide range of manufacturers, please refer to the specifications section and your vehicle handbook.
Product Performance Claims
- ACEA C3
- API SN Plus
- BMW Longlife-04
- Meets Fiat 9.55535-S2
Warranted by Castrol to be completely suitable for use in vehicles where the following specifications apply: MB 229.31/ 229.51/ 229.52
| Oil | Synthetic Oil |
|---|---|
| SAE viscosity class | 5W-40 |
| Manufacturer Approval | BMW Longlife-04, FIAT 9.55535-S2, MB 229.51, MB 229.52, MB 229.31 |
| Specification | ACEA Light Duty C3, API Gasoline SN Plus, API Gasoline SP |

CASTROL MAGNATEC PROTECTS MILLIONS OF ENGINES AROUND THE WORLD.
Traffic congestion has increased significantly over the past decade. That’s annoying, but worse, it slowly damages your engine – permanently. To respond to increasingly urbanised environments, we developed Castrol MAGNATEC with patented DUALOCK technology.
Mechanics choose Castrol MAGNATEC with DUALOCK Technology to protect engines all around the world from warm-up wear and re-start wear. Castrol MAGNATEC clings like a magnet to the vulnerable metal surfaces in your engine during warm-up. The unique patented molecule in DUALOCK Technology then locks together with the other MAGNATEC molecule, forming a forcefield that provides 50% better protection from warm-up wear and re-start wear.














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