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Base Oil Group – II
SN350

Description:
SN 350 Group II is a highly refined hydrotreated paraffinic base oil that offers improved purity, higher oxidative stability, and better low-temperature properties compared to conventional Group I SN 350. Produced through advanced hydrotreating or hydrocracking processes, it is free from impurities such as sulfur and aromatics, resulting in a colorless, thermally stable base stock ideal for high-performance automotive and industrial lubricants.

Production Process:

  • Hydrotreating/Hydrocracking: Deep saturation of aromatics and removal of sulfur for improved chemical stability

  • Isodewaxing: Enhances low-temperature performance and pour point

  • Hydrofinishing: Final polishing step that enhances color, stability, and filterability

Key Technical Properties (Typical Values):

  • Viscosity @ 100°C: ~6.5–7.2 cSt

  • Viscosity Index (VI): 105–120

  • Flash Point (COC): >220°C

  • Pour Point: -12°C to -18°C

  • Color (ASTM D1500): L0.5–L1.0 (water-clear)

  • Sulfur Content: ≤ 0.03%

  • Saturates: ≥ 90%

  • Oxidation Stability: Excellent

  • Volatility: Low, improving oil consumption and emissions performance

Benefits:

  • High thermal and oxidative stability for extended lubricant life

  • Superior low-temperature fluidity improves cold start protection

  • Ultra-low sulfur content contributes to cleaner combustion

  • High saturate content enhances resistance to oxidation and sludge

  • Outstanding additive response and blending compatibility

  • Excellent performance in both automotive and industrial lubricant formulations

Applications:

  • Passenger Car Motor Oils (PCMO): API SN/SP and ILSAC GF-6 compliant formulations

  • Heavy-Duty Diesel Engine Oils (HDEO): Low-emission engine lubricants

  • Industrial Lubricants: Hydraulic fluids, compressor oils, turbine oils

  • Transmission & Gear Oils: Enhanced oxidation stability for longer drain intervals

  • Greases & Metalworking: Ideal for applications requiring high base oil purity

  • Blending Stock: Used alone or with Group I/Group III to optimize performance

Packaging Options:

  • Available in bulk, 200-liter drums, IBCs (totes), or flexitanks

  • Custom packaging and additive pre-mixes available on request

Compliance & Standards:

    • Conforms to API Group II base oil classification

    • Suitable for lubricant formulations complying with API SN/SP, ACEA, and OEM specifications

Product data sheets can be downloaded from the following link(s):

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