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