China Longhai CJ-4 Synthetic Diesel Oil - Premium Protection & Performance from Trusted Suppliers and Factory
Key Benefits & Features
- Synthetic technology ensures superior oil film strength, minimizing metal-to-metal contact and preventing wear under extreme operating conditions
- Advanced anti-wear additives provide critical component protection (turbochargers, pistons, bearings) even under heavy loads
- Specialized friction modifiers reduce energy loss while maintaining protective oil film integrity
- Exceptional thermal and oxidation stability prevents oil breakdown in high-heat environments
- Powerful detergency controls deposits and soot accumulation to maintain engine cleanliness
- Resists viscosity breakdown in turbocharged applications, ensuring continuous protection
- Superior cold-flow properties enable quick cold starts and instant lubrication in freezing conditions
- Maintains stable viscosity across wide temperature ranges for consistent protection
- Excellent pour point characteristics for reliable operation in arctic conditions
- Fully compliant with API CJ-4 and ACEA E7-12 specifications
- Compatible with DPFs (Diesel Particulate Filters) and other aftertreatment systems to help reduce emissions
- Low SAPS (Sulfated Ash, Phosphorus, Sulfur) formulation protects emission control systems
- Enhanced TBN (Total Base Number) retention effectively neutralizes acids for extended service life
- Reduces maintenance costs while maintaining peak engine performance
- Advanced additive package resists depletion for longer-lasting protection
Technical Specifications
| Base Oil | Premium Synthetic (Group III/IV) |
| Additive Package | Afton Technology |
| Available Viscosity Grades | 15W-40, 10W-30 |
| API Classification | CJ-4 |
| ACEA Specifications | E7-12 |
| OEM Approvals | Meets major manufacturer requirements |
Recommended Applications
Why Choose Longhai API CJ-4 Synthetic?
Extensive laboratory and field testing validates superior protection.
Extended drain intervals reduce total cost of ownership.
Keeps critical components cleaner for longer service life.
Helps meet Euro VI/EPA 2010 emissions standards.
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Frequently Asked Questions
1. What are the main benefits of using Longhai API CJ-4 Synthetic oil?
It offers ultimate engine protection through advanced anti-wear additives, high-temperature thermal stability to prevent deposits, all-climate cold-flow performance, compliance with emission standards (DPF compatible), and extended drain intervals to reduce maintenance costs.
2. Which viscosity grades are available for this synthetic diesel engine oil?
Longhai API CJ-4 Synthetic engine oil is currently available in premium 15W-40 and 10W-30 viscosity grades to suit different operating climates and equipment requirements.
3. Is this oil compatible with modern emission control systems?
Yes, it features a Low SAPS (Sulfated Ash, Phosphorus, Sulfur) formulation, making it fully compatible with Diesel Particulate Filters (DPFs) and other modern exhaust aftertreatment systems.
4. Can I use this oil in construction and mining machinery?
Absolutely. The oil is specifically recommended for heavy-duty applications including construction and mining equipment, commercial vehicle fleets, and long-haul transportation trucks.
5. What industry standards and specifications does this oil meet?
It is fully compliant with API CJ-4 and ACEA E7-12 specifications, and meets the major manufacturer requirements (OEM approvals) for modern diesel engines.