Characteristics:

1. Viscosity: The "150" in SN 150 refers to its viscosity grade. In this case, it is a relatively low viscosity base oil, with a kinematic viscosity typically ranging between 14 and 20 cSt (centistokes) at 40°C. This makes it a good choice for applications requiring lower viscosity oils.

2. Classification: SN 150 is classified as a solvent-neutral (SN) base oil. Solvent-neutral oils are produced through a refining process that removes impurities and provides a base oil with a stable, predictable performance profile. The "150" denotes a specific viscosity index within this category.

3. Properties:

   • Low Viscosity: SN 150 has a thinner consistency compared to higher viscosity base oils, which can enhance flow characteristics and reduce friction in applications.
   • Color and Appearance: Typically, SN 150 base oil is clear or light yellow, reflecting its refined nature and absence of significant impurities.

4. Applications:

   • Lubricants: Often used in the formulation of engine oils, transmission fluids, and industrial lubricants where a low viscosity is desirable.
   • Hydraulic Fluids: Can be used in hydraulic fluids that require low viscosity for optimal performance.
   • Specialty Products: Utilized in various specialty products such as some types of grease and industrial fluids.

5. Performance:

   • Lubrication: Provides good lubrication properties due to its refined nature and low viscosity, which helps reduce wear and tear in machinery.
   • Temperature Performance: Works well in applications where low temperature fluidity is important, though it might not be suitable for high-temperature applications where a higher viscosity would provide better protection.

6. Regulatory and Industry Standards: SN 150 base oils generally meet various industry standards and specifications, depending on the intended application, which may include API, SAE, or other relevant standards.