Castrol MAGNATEC engine oil, featuring DUALOCK technology, is specifically engineered for today’s urban driving environment and designed to protect engines against the wear caused by re-starting in busy traffic.
 
The patented molecule in DUALOCK Technology helps provide 50% better protection from warm-up wear  and re-start wear
Clings like a magnet to the vulnerable metal surfaces and moving parts in your engine.
Locks to form a force field around critical engine parts.
Protects engines by providing 50% better protection from warm-up wear* and re-start wear**