Longhai CI-4 PLUS Diesel Engine Oil - Premium Quality from China Suppliers & Factory for Ultimate Protection and Efficiency
Key Benefits
✅ Advanced Wear Protection & Fuel Savings
- Enriched with extreme-pressure anti-wear additives to significantly reduce engine wear, even under heavy loads.
- Improves fuel efficiency by 5% or more, lowering operational costs while reducing environmental impact.
- Optimized friction modifiers minimize energy loss, ensuring smoother engine operation and extended component life.
✅ Exceptional High-Temperature Performance
- Superior low-temperature fluidity ensures quick cold starts and instant lubrication in freezing conditions.
- High-temperature shear stability maintains consistent oil pressure, protecting turbocharged and multi-valve engines under extreme heat.
- Resists thermal breakdown and oxidation, extending oil life and reducing sludge formation in high-stress applications.
✅ Enhanced Engine Cleanliness
- Powerful detergents and dispersants prevent the formation of high-temperature deposits and low-temperature sludge, keeping critical engine components clean for optimal performance.
- Reduces harmful buildup in Exhaust Gas Recirculation (EGR) and turbocharger systems, prolonging engine lifespan.
- Maintains piston cleanliness, preventing ring sticking and maintaining compression efficiency.
✅ Certified for Modern Engines – API CI-4 PLUS
- Meets API CI-4 PLUS specifications, providing enhanced protection for engines equipped with Exhaust Gas Recirculation (EGR) and aftertreatment systems.
- Compatible with Ultra-Low Sulfur Diesel (ULSD), helping meet stringent emissions standards (EPA, Euro VI).
- Ideal for engines with Diesel Particulate Filters (DPF) and Selective Catalytic Reduction (SCR), ensuring compliance with environmental regulations.
Ideal Applications
- High-performance turbocharged diesel engines
- Heavy-duty trucks and commercial fleets
- Construction and agricultural machinery
- Mining and industrial equipment
- Long-haul transportation and off-road vehicles
Why Choose Longhai API CI-4 PLUS Diesel Engine Oil?
Longhai’s advanced formula is engineered for maximum durability, efficiency, and protection, making it the ideal choice for modern diesel engines operating under extreme conditions.
Technical Specifications
| Viscosity Grades | 15W-40, 10W-30, 20W-50 (available upon request) |
| API Classification | CI-4 PLUS |
| ACEA Specifications | E7, E9 |
| OEM Approvals | Meets or exceeds requirements for major diesel engine manufacturers |
Conclusion
For engines that demand peak performance, fuel efficiency, and long-term reliability, Longhai API CI-4 PLUS Diesel Engine Oil is the ultimate solution. Whether you operate a heavy-duty truck fleet, construction equipment, or agricultural machinery, this oil ensures optimal protection and cost-effective operation.
Upgrade to Longhai CI-4 PLUS today and experience the difference in performance and durability!
Frequently Asked Questions (FAQ)
What are the main benefits of using Longhai API CI-4 PLUS Diesel Engine Oil?
It provides advanced wear protection, improves fuel efficiency by 5% or more, offers exceptional high-temperature stability, and maintains excellent engine cleanliness by preventing sludge and deposit buildup.
Which engines and machinery is this oil suitable for?
This oil is ideal for high-performance turbocharged diesel engines, heavy-duty commercial truck fleets, construction and agricultural machinery, mining equipment, and long-haul or off-road vehicles.
Is this engine oil compatible with modern emissions control systems?
Yes, it is designed for modern engines equipped with Exhaust Gas Recirculation (EGR), Diesel Particulate Filters (DPF), and Selective Catalytic Reduction (SCR) systems, and it is fully compatible with Ultra-Low Sulfur Diesel (ULSD).
How does this oil help extend service intervals and lower maintenance costs?
With its high Total Base Number (TBN), the oil effectively resists acid formulation and thermal breakdown. This allows for extended drain intervals, minimizes engine component wear, and reduces overall maintenance frequency.
What viscosity grades are available for this diesel engine oil?
The standard viscosity grades available are 15W-40, 10W-30, and 20W-50. Other specific viscosity grades can also be provided upon request to meet your operational requirements.