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Base oil is the primary raw material in the production of lubricants, greases, and other petrochemical products. At RAHA OIL, we supply high-quality base oils derived from carefully refined crude oil, ensuring excellent performance in automotive, industrial, and specialty applications.
Base oils typically make up 70–95% of a finished lubricant, meaning their characteristics directly influence the efficiency, stability, and lifespan of the final product.
What is Base Oil?
Base oil is produced through a series of refining processes, including:
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Distillation – adjusting viscosity and flash point
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Solvent Extraction (Furfural) – improving viscosity index
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Dewaxing (M.E.K process) – enhancing low-temperature performance
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Hydrofinishing – removing impurities such as sulfur and nitrogen
The result is Solvent Neutral (SN) Base Oil, classified into grades based on viscosity at 40°C, such as SN 150, SN 350, SN 500, and SN 650.
Main Types of Base Oil
1. Paraffinic Base Oils (Group I & II)
Paraffinic base oil (PBO) is a refined mineral oil with outstanding lubricating performance.
Key Features:
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Superior lubrication and wear protection
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Excellent high-temperature stability
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High oxidation resistance for long service life
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Good solubility with additives
Applications:
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Engine oils (automotive & industrial)
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Hydraulic fluids
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Gear oils & compressor lubricants
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Heat transfer fluids
2. Naphthenic Base Oils (Group V)
Naphthenic base oils (NBOs) are derived from crude petroleum with unique solvency and low-temperature properties.
Key Features:
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Exceptional solvency for additives
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Excellent cold-weather performance
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Naturally low wax content (minimal dewaxing required)
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Stable color and appearance
Applications:
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Metalworking fluids
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Transformer oils
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Adhesives, sealants & printing inks
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Specialty greases & lubricants
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Process oils in rubber and plastics
3. Synthetic Base Oils (Group III, IV & V)
Synthetic base oils (SBOs) are chemically engineered for superior performance compared to mineral oils.
Key Features:
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Wide temperature range (extreme cold/heat)
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High oxidation resistance → extended oil life
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Low volatility → reduced oil loss
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Excellent shear stability under high stress
Applications:
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High-performance automotive engines
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Gear & transmission lubricants
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Long-life industrial greases
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Hydraulic fluids for extreme conditions
