Automotive Diesel Engine Oils
Automotive diesel engine oils are specially formulated lubricants designed to meet the unique demands of diesel engines. These oils play a crucial role in ensuring optimal engine performance, longevity, and efficiency. They are engineered to provide superior protection against wear, corrosion, and deposits, while also maintaining engine cleanliness and performance under various operating conditions.
Uses of Automotive Diesel Engine Oils
- Engine Protection: Diesel engine oils provide a protective film that reduces friction between moving parts, minimizing wear and tear.
- Temperature Regulation: They help in dissipating heat generated during combustion, ensuring the engine operates within optimal temperature ranges.
- Contaminant Control: These oils are designed to suspend and neutralize contaminants, preventing sludge and varnish buildup.
- Fuel Efficiency: High-quality diesel engine oils can improve fuel economy by reducing friction and enhancing engine efficiency.
- Emissions Control: Many diesel engine oils are formulated to reduce emissions, helping vehicles meet environmental regulations.
Technical Data
| Property | Specification | Typical Value |
|---|---|---|
| Viscosity Grade | SAE 15W-40 | 15W-40 |
| API Service Classification | CK-4 | CK-4 |
| Density (g/cm³) | 15°C | 0.87 |
| Flash Point (°C) | ASTM D92 | 220 |
| Pour Point (°C) | ASTM D97 | -30 |
| Total Base Number (TBN) | ASTM D2896 | 10-12 |
| Sulfated Ash Content (%) | ASTM D874 | 1.0-1.5 |
| Viscosity Index | ASTM D2270 | 130 |
| Foaming Characteristics | ASTM D892 | Pass |
| Oxidation Stability | ASTM D943 | 500+ hours |
Key Features
- High Detergency: Keeps engine components clean by preventing deposit formation.
- Enhanced Wear Protection: Formulated with advanced additives to protect against wear and tear.
- Thermal Stability: Maintains performance under high-temperature conditions.
- Compatibility: Suitable for use in a wide range of diesel engines, including turbocharged and naturally aspirated engines.
In summary, automotive diesel engine oils are essential for maintaining the health and performance of diesel engines. Their unique formulations cater to the specific needs of diesel engines, ensuring they operate efficiently and reliably over time.