Castrol EDGE 0W-40 A3/B4 containing Titanium Fluid Strength Technology which:Delivers excellent levels of protection across a variety of driving conditions and temperatures. Helps engines run cooler, contributing to longer engine life and reduces engine deposits to help maximise engine response. Is extreme tested to deliver maximum horsepower up to 40% longer than other synthetic oils. Superior thermal stability ensures minimal breakdown in formulation and minimal engine deposits for cleaner engine internals and ultimate engine protection. Engineered to minimise oil consumption, ensuring the maximum potential is available from the oil throughout the service interval. Excellent light duty diesel engine performance; suits modern direct injection engines without DPF