Rasha Motor oil 5W 40 API SN full synthetic engine oil is the ultimate in protection and performance. This premium quality engine oil is formulated a complex blend of synthetic base oils and chemical additives designed to protect the engine and enhance its performance under extreme operating conditions such as high temperature motorway driving or low temperature stop and go driving. Rasha Motor oil� 5W 40 API SN full synthetic engine oil is the ultimate in protection and performance. This premium quality engine oil is formulated a complex blend of� synthetic� base oils and chemical additives designed to protect the engine and enhance its performance under extreme operating conditions such as high temperature motorway driving or low temperature stop and go driving. � This oil is designed for use in high-speed four-stroke cycle diesel engines and Tier 4 non-road exhaust emission standards as well as for previous model year diesel engines.SAE 5 W 40 API SN RASHA Motor Oil Full synthetic engine oil, low friction type that reduces fuel consumption. Recommended for 4-stroke engines, petrol or diesel, which is used in in extreme cold and in warmer climates. This motor oil is especially effective at sustaining emission control system durability where particulate filters and other advanced after treatment systems are used. RASHA Motor oil Heavy-Duty SAE 5W-40 Full Synthetic API SN provide enhanced protection against oil oxidation, viscosity loss due to shear, and oil aeration as well as protection against catalyst poisoning, particulate filter blocking, engine wear, piston deposits, degradation of low- and high-temperature properties, and soot-related viscosity increase.