High-Performance Poly Alpha Olefin (PAO4 / PAO6 / PAO8) Synthetic Base Oils for Lubricant Formulation

1. Introduction to PAO Synthetic Base Oils

Poly Alpha Olefin (PAO) synthetic base oils — including PAO4, PAO6, and PAO8 — are advanced hydrocarbon fluids produced through α-decene oligomerization and hydrogenation.
With excellent low-temperature fluidity, high viscosity index, and outstanding thermal oxidation stability, PAO base oils are widely used in automotive lubricants, industrial gear oils, and synthetic greases.

PAOs are ideal as Group IV base oils, offering superior performance compared to conventional mineral oils. Their consistent molecular structure ensures stable viscosity and low volatility under extreme operating conditions.

2. Key Properties and Technical Advantages

• Excellent low-temperature fluidity — ensuring smooth engine start-up in cold climates.

• High viscosity index (VI) — maintaining stable viscosity across wide temperature ranges.

• Superior thermal and oxidation stability — extending lubricant service life.

• Low volatility and evaporation loss — reducing oil consumption and emissions.

• Outstanding compatibility — suitable for blending with Group III and ester-based base oils.

These properties make PAO4, PAO6, and PAO8 indispensable for formulating high-end synthetic lubricants across multiple industries.

3. Product Grades and Typical Applications

PAO4

• Viscosity (100°C): ~4 cSt

• Applications:
  Ideal for engine oils, hydraulic fluids, and compressor lubricants requiring superior cold flow and oxidation resistance.
  Long-tail keywords: low viscosity synthetic oil, PAO4 base oil for automotive lubricants, engine oil formulation additive

• 

PAO6

• Viscosity (100°C): ~6 cSt

• Applications:
  Commonly used in transmission fluids, gear oils, and industrial lubricants demanding high thermal stability and anti-wear protection.
  Long-tail keywords: high-performance gear oil base, PAO6 for industrial lubricant blending, synthetic hydraulic oil base stock

• 

PAO8

• Viscosity (100°C): ~8 cSt

• Applications:
  Designed for heavy-duty diesel engine oils, industrial gear oils, synthetic greases, and metalworking fluids.
  Long-tail keywords: PAO8 for heavy-duty lubricants, synthetic grease base oil, industrial gear oil formulation

• 

4. Target Industries and Downstream Applications

Poly Alpha Olefin base oils are extensively used by:

• Automotive lubricant manufacturers (engine oils, ATF, transmission fluids)

• Industrial lubricant formulators (hydraulic oils, compressor oils, turbine oils)

• Metalworking fluid producers

• Grease manufacturers

• Additive companies and blenders seeking performance enhancement and stability improvement

By integrating PAO4 / PAO6 / PAO8, manufacturers can develop premium-grade synthetic lubricants that deliver superior efficiency, reduced maintenance costs, and extended drain intervals.

5. Why Choose ZHENGMAO PETROCHEMICAL (ZMPC) PAO Series

ZMPC® specializes in high-purity PAO synthetic base oils with stable molecular uniformity, consistent viscosity control, and high-quality technical support.
Our PAO4, PAO6, and PAO8 meet the performance requirements of API Group IV standards, ensuring reliable performance for automotive and industrial lubricant applications.

✅ Consistent batch quality
✅ Technical formulation guidance
✅ Global export service
✅ Custom packaging and OEM supply available