I. Basic Product Attributes

1. General Information

• Manufacturer: Shenyang Teli Petrochemical Co., Ltd. (formerly part of PetroChina/Sinopec Shenyang Branch)

• Standards Compliance:

• National Standard GB 440-1977 (1988 Confirmation)

• Enterprise Standard Q/STL.003-2015

• Packaging: 170 kg/barrel (steel drum) and 15 kg/barrel; special 10 kg/barrel mentioned in some literature

• Applications: Extreme cold/high-altitude machinery, aircraft hydraulic systems, ground engineering equipment (e.g., cranes, dump trucks, oilfield equipment)

2. Material Composition

• Base Oils: Deeply refined and dewaxed low-pour-point base oils (from Daqing/Yumen oilfields) blended with synthetic hydrocarbons

• Additives:

• Antioxidants (e.g., 264 antioxidant)

• Ashless dispersants

• Anti-wear agents (enhancing shear stability)

II. Core Technical Parameters

Note: Parameter variations may stem from product iterations (e.g., 1980s synthetic hydrocarbon versions for improved low-temp performance) or testing standards.

III. Performance Advantages

1. Low-Temperature Adaptability

• Viscosity-Temperature Characteristics: Viscosity index of 120 (vs. <100 for conventional oils), balancing pumpability at low temps and lubrication at high temps.

• Cold-Start Capability: Stable viscosity at -60°C outperforms MIL-H-5606 (-54°C limit).

2. Oxidation Resistance & Service Life

• 264 antioxidant delays oxidation; thermal stability at 250°C exceeds 60 minutes in lab tests.

• Synthetic hydrocarbon formula extends lifespan by 30% vs. petroleum-based oils.

3. Compatibility & Safety

• Compatible with nitrile rubber, fluorocarbon seals, and other materials (minimizing leakage risks).

• High flash point (260°C) meets aviation fire-resistance requirements.

4. Military & Industrial Adaptability

• Certified under GJB 1219-91 for artillery systems and high-altitude equipment.

• 40% cost reduction vs. imported alternatives (e.g., Mobil DTE 20 series).

IV. Market Positioning & Competitive Analysis

1. Benchmarking

   Brand/Model	Low-Temp Limit	Flash Point	Fire Resistance	Applications
   Teli No. 20	-60°C	260°C	Standard	Aviation/Military/Heavy Equipment
   Mobil HyJet V	-54°C	230°C	MIL-PRF-83282	Civil Aviation
   Skydrol 5	-40°C	171°C	Phosphate Ester	Commercial Aircraft

   Advantage: Superior low-temp performance vs. international fire-resistant oils (e.g., Skydrol 5), but weaker fire resistance than phosphate esters.

2. Localization Value

• Breaks China’s historical reliance on imports (e.g., MIL-H-5606) via synthetic hydrocarbon technology.

V. Improvement Directions & User Recommendations

1. Technical Upgrades

• Fire Resistance: Develop next-gen products meeting MIL-H-87257D (-54°C + fire resistance).

• Eco-Friendliness: Reduce evaporation loss (current ≤0.5%) to comply with EU REACH.

2. Usage Guidelines

• Temperature Matching: Use preheating systems in extreme cold (<-60°C).

• Replacement Cycle: Monitor acid value/viscosity every 2,000 hours or annually.

• Mixing Risks: Avoid blending with phosphate ester oils to prevent seal degradation.

VI. Industry Trends & Strategic Significance

1. Growing Demand

• Arctic development and high-altitude infrastructure drive 8% annual growth in low-temp hydraulic oil markets.

• Critical for China’s military equipment in extreme environments.

2. Technology & Patents

• Patented synthetic hydrocarbon refining (e.g., deep dewaxing).

• Align with SAE AS1241 to enter civil aviation supply chains.

VII. Conclusion

Teli No. 20 Aviation Hydraulic Oil fills a gap in domestic high-end hydraulic oils for extreme conditions, achieving international benchmarks in core parameters (-60°C operation, 260°C flash point). While excelling in low-temp and military applications, upgrades in fire resistance and eco-compliance are needed. Future success hinges on technological iteration and expanding into civil aviation and global markets.