What is the Lubricant Grade?

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Lubricant grades are based on the SAE (Society of Automotive Engineers) viscosity classification system. This is a viscosity grading method that divides lubricants into high-temperature types for summer use, low-temperature types for winter use, and all-season types suitable for both winter and summer. Introduction: Engine oil, also known as engine lubricant, has a density of approximately 0.91×10³ (kg/m³). It serves multiple functions in an engine, including lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, as well as shock absorption. It is often referred to as the 'blood' of a car. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of the lubricant, determining its fundamental properties, while additives compensate for and enhance the shortcomings of the base oil, providing additional performance characteristics. Additives are an essential part of engine oil. Classification: Engine oils on the market can be broadly categorized into two types based on their base oil: mineral oil and synthetic oil.