Castrol 10W40 Magnetic 4L Engine Oil sticks to and protects your engine when it's needed most - while warming up when up to 75% of engine wear occurs. The unique engine oil structure protects from start-up, greatly reducing engine wear to keep it running smoothly (as tested in the Series IVA wear test). Smart particles bond to metal surfaces to make engine parts more resistant to corrosion to provide additional protection in high and low temperature applications, providing continuous protection for all driving conditions, styles and temperatures. MAGNATEC 10W-40 is a fractional synthetic engine oil formulated to fit a wide range of petrol engines, direct and indirect injection diesel engines, LPG, CNG, light commercial vehicles and SUVs. FEATURES AND BENEFITS - Smart Moles: They stick to important engine parts when the oil runs low. Mounting to your engine forms an extra layer of protection during operation and beyond. It adheres to metal surfaces to make engine parts more wear-resistant. It is combined with synthetic technology to provide additional protection in high and low temperature applications. Provides continuous protection for all driving conditions, styles and temperatures. API SN/CF ACEA A3/B4