Understanding SOC-4 Base Oil: The Future of High-Performance Lubricants
Introduction
In a competitive lubricant market driven by performance, SOC-4 base oil stands out as a modern solution engineered for thermal stability, viscosity control, and long-lasting protection. As industries move toward efficiency and higher stress tolerance, SOC-4 represents a new generation of base oils.
Whether you’re formulating engine oils, hydraulic fluids, or specialty lubricants, SOC-4 offers the performance edge needed to meet the demands of today’s machinery.
What Is SOC-4 Base Oil?
SOC-4 is a premium solvent-neutral base oil known for:
- High viscosity index (VI ≥ 120)
- Low volatility
- Excellent oxidation resistance
- Stable performance in both cold and hot conditions
It is a step beyond traditional SN-150 or SN-500 grades, targeting high-performance lubricant formulations where consistency and durability are critical.
SOC-4 Key Specifications
| Property | Value | Test Method |
|---|---|---|
| Kinematic Viscosity @100°C | 4.7 ± 7% cSt | ASTM D-445 |
| Kinematic Viscosity @40°C | 23 ± 7% cSt | ASTM D-445 |
| Viscosity Index | Min 120 | ASTM D-2270 |
| Flash Point | Min 210°C | ASTM D-92 |
| Pour Point | -9°C | ASTM D-97 |
These properties make it ideal for formulating high-performance automotive oils and industrial lubricants.
Applications of SOC-4
SOC-4 is versatile and suitable for industries that demand reliability under extreme conditions:
- Automotive engine oils
- Hydraulic systems
- Compressor oils
- Marine lubricants
- Industrial gear oils and greases
It also improves fuel economy, reduces deposit formation, and enhances oxidation resistance, making it suitable for low-emission engine oils.
Why Use SOC-4 Over Traditional SN Grades?
| Feature | SOC-4 | SN-150 / SN-500 |
|---|---|---|
| Viscosity Index (VI) | 120+ | 90–95 |
| Oxidation Stability | High | Medium |
| Fuel Efficiency | Excellent | Moderate |
| Engine Deposit Protection | Superior | Average |
| Temperature Performance | Wide range (−9°C to 210°C+) | Limited |
SOC-4 delivers superior thermal and mechanical performance, reducing lubricant breakdown under stress.
Packaging & Export Options
SOC-4 base oil is supplied in:
- New steel drums
- Bulk tankers
- Flexitanks
Our export service includes custom labeling, inspection certifications, and rapid global shipping.
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Top 10 FAQs on SOC-4 Base Oil
1. What does SOC-4 stand for?
It’s a proprietary name for a high-performance solvent-neutral base oil with enhanced specs.
2. What viscosity range does SOC-4 cover?
Approx. 4.7 cSt @100°C and 23 cSt @40°C.
3. Is SOC-4 better than SN-500?
Yes, it offers higher VI, better oxidation control, and improved fuel economy.
4. Can SOC-4 be used in diesel engines?
Yes, especially in low-emission and high-load diesel engines.
5. Does SOC-4 support additive blending?
Absolutely — it is compatible with standard additive packages.
6. What is the flash point of SOC-4?
≥210°C, ensuring thermal safety and stability.
7. How is SOC-4 packaged for export?
Bulk, drum, and flexitank — depending on customer need.
8. Can SOC-4 replace both SN-150 and SN-500?
Yes, in formulations where performance trumps cost.
9. Where is SOC-4 base oil used?
In automotive, industrial, and marine lubricants.
10. Is SOC-4 inspected by third parties?
Yes, commonly inspected by SGS and other global agencies.
