Castrol Magnatec 5W40 DPF Synthetic Engine Oil safeguards your diesel engine like never before. Its advanced formula ensures your engine parts are protected from wear, especially during those crucial cold starts and frequent stop/start conditions in traffic.Key Features and Benefits:DUALOCK Technology: This innovative technology provides a robust protective layer on engine components, clinging firmly to engine parts to guard against wear during warm-up and in stop/start traffic conditions, leading to a significantly reduced risk of engine wear and tear, ensuring your vehicle runs smoothly and efficiently.50% Enhanced Protection: The unique formulation of Castrol Magnatec offers 50% better protection against engine cold start wear and re-start wear, meaning a longer lifespan for your engine and fewer concerns about costly repairs and maintenance.Approved For Diesel Engines Fitted With DPF's: Castrol Magnatec enhances protection across a range of modern diesel engines and meets various O