Hydrotreated Base Oils that typically have high purity levels
Group II Base Oils Overview
Group II base oils are an improvement over Group I oils, offering enhanced purity and performance. They are produced using hydrocracking and hydroprocessing techniques, which result in oils with a higher degree of refinement and stability.
Key Characteristics
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Chemical Composition:
- Saturates Content: Greater than 90%.
- Sulfur Content: Less than 0.03%.
- Viscosity Index (VI): Between 80 and 120, similar to Group I.
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Physical Properties:
- Clearer in color compared to Group I.
- Better oxidation stability due to reduced impurities.
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Production Process:
- Made through hydroprocessing, which removes sulfur and other impurities and saturates aromatic compounds.
- The process uses high pressures, hydrogen, and catalysts to improve the molecular structure and remove undesirable elements.
Advantages
- Enhanced Oxidation Stability:
- Reduces sludge formation and extends lubricant life.
- Cost-Effective:
- Offers better performance than Group I without the high costs of Group III or synthetic oils.
- Wide Range of Applications:
- Suitable for a variety of industrial and automotive uses.
Disadvantages
- Moderate Performance:
- Not as high-performing as Group III or synthetic oils in extreme environments.
- Additive Compatibility:
- May require additional additive packages for specific applications.
Applications
- Automotive Lubricants:
- Engine oils, transmission fluids, and gear oils.
- Industrial Lubricants:
- Hydraulic fluids, compressor oils, and turbine oils.
- Process Oils:
- Used in manufacturing and blending processes where moderate performance is sufficient.
Comparison with Group I and III
- Group I: Group II has better oxidation resistance, lower sulfur content, and a clearer appearance.
- Group III: Group III offers a higher viscosity index and is more suitable for extreme temperature ranges but is more expensive.
For further information and detailed specifications, please contact us.
Please note: Colour of base oil will vary according to source and refinery process.
