Use of Base Oil SN500

Base Oil SN500 is a specific type of base oil that falls under Group I classification according to the American Petroleum Institute (API) categorization. SN500 refers to the viscosity range of the base oil, with “SN” standing for “solvent neutral” and “500” indicating the viscosity index. Let’s explore some key characteristics and applications of Base Oil SN500.


  1. Viscosity Range:
    Base Oil SN500 has a viscosity range of approximately 400-800 centistokes (cSt) at 40°C. This viscosity range makes it suitable for applications requiring higher viscosity lubricants.


  1. Composition and Production:
    SN500 base oil is derived from crude oil through a refining process known as solvent refining or solvent extraction. It is produced by treating crude oil with a solvent to remove impurities, resulting in a refined base oil with improved stability and performance characteristics.


  1. Performance and Applications:
    Base Oil SN500 is commonly used in a range of lubricant applications, including:

    • Industrial Lubricants: SN500 base oil is used in the formulation of industrial lubricants such as hydraulic fluids, gear oils, and metalworking fluids. Its higher viscosity provides enhanced lubrication and protection for heavy-duty equipment and machinery operating under high loads and temperatures.
    • Automotive Lubricants: SN500 base oil is also used in automotive lubricants, including engine oils, transmission fluids, and gear oils. Its higher viscosity and improved thermal stability make it suitable for applications where increased film strength and protection are required.
    • Transformer Oils: Base Oil SN500 is used as a component in transformer oils, which are vital for electrical transformers. Its higher viscosity and excellent insulating properties help in dissipating heat and providing electrical insulation for optimal transformer performance.
    • Greases: SN500 can be used as a base oil in grease formulations. When combined with thickeners and additives, it creates a semi-solid lubricant that provides long-lasting lubrication and protection in various applications, such as bearings and chassis components.
    • Other Applications: SN500 base oil finds application in other specialty lubricants, including metal rolling oils, rust preventives, and process oils.


  1. Additive Compatibility:
    Base Oil SN500 can be blended with various additives to enhance its performance and tailor it to specific application requirements. Additives such as antioxidants, anti-wear agents, friction modifiers, and detergents/dispersants can be incorporated to improve oxidation resistance, wear protection, friction control, and cleanliness of the lubricant.


In summary, Base Oil SN500 is a Group I base oil with a viscosity range of approximately 400-800 cSt at 40°C. It is widely used in industrial and automotive lubricants, transformer oils, greases, and other specialty applications. Its higher viscosity and improved thermal stability make it suitable for heavy-duty and high-temperature operations. By blending with appropriate additives, SN500 can be customized to meet specific performance requirements in various lubricant applications.

Verified by MonsterInsights