SN150 vs SN500: Key Differences in Performance and Pricing
In the lubricants industry, base oil selection plays a critical role in the performance and cost of the final product. Among Group I base oils, SN150 base oil and SN500 base oil are the most widely used. While they share a common refining process, their differences in viscosity, applications, and price trends make them suitable for very different markets.
Technical Specifications: SN150 vs SN500
| Property | SN150 Base Oil | SN500 Base Oil | Key Takeaway |
|---|---|---|---|
| Viscosity @ 40 °C | 135–165 cSt | 485–515 cSt | SN500 is thicker and stronger |
| Viscosity Index (VI) | 95–100 | 95–105 | Similar VI, different flow behavior |
| Pour Point | -6 °C | -3 °C | SN150 flows better at lower temps |
| Flash Point | ~200 °C | ~220 °C | SN500 has higher thermal stability |
| Color (ASTM) | ≤1.5 | ≤2.0 | Both are pale to light yellow |
This comparison shows that SN150 base oil is better suited for light-duty lubricants, while SN500 base oil delivers stronger performance for high-load applications.
Performance Differences
SN150 Base Oil – Its lighter viscosity makes it ideal for engine oils, hydraulic fluids, and industrial lubricants. It also improves cold-start properties in automotive lubricants.
SN500 Base Oil – With higher viscosity and film strength, SN500 is used in gear oils, greases, and heavy-duty engine oils, where thermal stability and protection under pressure are required.
Additive Compatibility – Both grades blend easily with performance additives, but SN150 provides better solvency, while SN500 enhances durability.
Pricing Trends: SN150 Price vs SN500 Price
In 2025, the SN150 price continues to remain slightly lower compared to SN500 price due to its lighter grade and wider availability.
SN150 base oil price (CIF Asia & Middle East): $930–$980/MT
SN500 base oil price (CIF Asia & Middle East): $950–$1,010/MT
While the difference may appear small, the SN500 premium reflects its added performance benefits. Market analysts expect stable demand growth for SN150 in automotive oils, while SN500 demand is rising in industrial and marine sectors due to heavy-duty needs.
Global and Regional Market Outlook
Asia: High consumption of both SN150 and SN500 in China, India, and Southeast Asia, where lubricant demand is expanding.
Middle East: Export hubs in Iran, UAE, and Saudi Arabia remain strong suppliers of both SN150 and SN500.
Europe: Demand is shifting toward Group II base oils, but Group I grades like SN150 and SN500 still hold a niche market in industrial uses.
The choice between SN150 vs SN500 depends on viscosity, pricing, and performance needs. SN150 base oil offers better flow, lower cost, and is widely used in automotive and light industrial lubricants. SN500 base oil provides higher viscosity, thermal stability, and superior protection for heavy-duty lubricants. In 2025, SN150 price remains slightly lower, while SN500 price reflects its performance premium. Both remain essential in the global lubricants market.
SN150 Base Oil – Lower viscosity, cost-effective, versatile in automotive lubricants.
SN500 Base Oil – Higher viscosity, strong thermal stability, ideal for heavy-duty use.
Price Spread – SN500 typically commands a $20–30/MT premium over SN150.
Global Demand – Both grades remain in demand across Asia, Middle East, and Europe.
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