Premium grade lubricants formulated to meet demanding API/ACEA specifications, providing ultimate mechanical longevity and thermal efficiency.
The global logistics, mining, and manufacturing infrastructure operates under stringent emissions criteria such as EPA Tier 4, Euro VI, and China VI. To comply, modern diesel powertrains require complex exhaust aftertreatment systems including Diesel Particulate Filters (DPFs), Diesel Oxidation Catalysts (DOCs), and Selective Catalytic Reduction (SCR) setups. The selection of heavy-duty engine oil plays a crucial role in preventing catalysts from poisoning and maintaining soot load dispersancy.
Shandong Longhai Technology designs high-performance formulations addressing the delicate trade-offs between wear protection and chemical emission control. By incorporating optimized Levels of Sulfated Ash, Phosphorus, and Sulfur (Low-SAPS chemistry), our oils resist oxidation, minimize piston deposit formation under high-temperature shear stresses, and prevent viscosity increase caused by carbon soot suspension.
For global heavy machinery operations, upgrading from API CI-4 or CJ-4 to API CK-4 yields extended oil drain intervals, better shear stability, and improved fuel economy, significantly decreasing the Total Cost of Ownership (TCO).
| Specification Profile | Soot Capacity / Dispersancy | Oxidation Stability Limit | Low-SAPS Compatibility | Ideal Heavy-Duty Application Scenarios |
|---|---|---|---|---|
| API CK-4 (Synthetic Blend / Fully Synthetic) | Excellent (Advanced Polymeric Dispersants) | Highly Elevated (>200 hrs @ 150°C) | 100% Compatible (DPF & SCR Safe) | Modern Euro VI/China VI Engines, Long-haul Logistics |
| API CJ-4 (Premium Synthetic Blend) | High (Standard soot control) | Elevated (150 hrs @ 150°C) | Compatible (DPF Protection) | Post-2007 on-highway and off-highway heavy-duty machinery |
| API CI-4 Plus / CI-4 (Mineral & Semisynthetic) | Moderate (Traditional dispersancy) | Standard industry threshold | Non-compatible (High ash levels) | Heavy-duty machinery running high sulfur fuels in global regions |
| API CF-4 (Mineral Heavy Duty) | Basic soot management | Basic oxidation threshold | Non-compatible | Legacy utility fleets and stationary generator engines |
Shandong Longhai Lubrication Technology Development Co., Ltd., established in 2009 and headquartered in Zibo, Shandong, acts as a pivotal node in the global high-tech chemical corridor. Utilizing Shandong’s strategic proximity to raw petrochemical bases, Longhai has integrated its entire procurement chain. This localized raw material access allows us to deliver international-standard base stock oils (Groups I, II, III, and synthetic Group IV PAOs) with unparalleled cost efficiency.
Spanning over 131 acres and operating a production capacity of 200,000 tons annually, our factory features modern, computerized batch blending systems. The plant's fully automated metering filling systems guarantee filling accuracy between 1‰ to 2‰.
By optimizing raw material throughput and mechanical packaging automation, we have reduced cycle times and boosted overall packaging speeds by 20% to 35%. These efficiencies allow us to fulfill large-scale global wholesale orders quickly and reliably.
Providing specialized lubrication solutions tailored to the operating conditions of various global industries.
Long-haul freight fleets run continuously under varied thermal conditions. Operating regional trucks demands engine oils with high shear stability and excellent deposit control.
Off-highway mining environments subject equipment to extreme shock loads, dust, and continuous vibrations. Hydraulic systems and gear assemblies require robust tribological films.
Stationary generators and marine propulsion systems operate under sustained loads for extended periods. Lubricants must provide reliable alkaline reserves (TBN) to neutralize acidic byproducts.
Specialized motor oils covering passenger vehicles, standard gasoline systems, and high-load commercial diesel engines.
Our tailored processing capabilities support private-label brand owners from initial laboratory formulation through to international shipping logistics.
Our chemical R&D engineers develop bespoke synthetic, semi-synthetic, and premium mineral base oil mixtures. These custom formulations are designed to meet exact regional regulatory standards (such as API, ACEA, and JASO) and perform reliably under specific operating temperatures.
Our blending facility supports both small-scale test batches and large-scale bulk distributions. We fill a wide range of sizes, including 1L, 4L, 18L containers, and 200L industrial steel drums, allowing you to scale production according to changing market demands.
Every batch undergoes strict testing to meet ISO 9001, ISO 14001, and ISO 45001 standards. We provide certified analysis certificates and third-party laboratory safety documents to facilitate smooth customs clearance.
We offer comprehensive branding and packaging services, including bottle molding design, high-resolution label printing, and multilingual packaging. Our design services help you build a premium brand identity that connects with your target market.
Defining application viscosity indices, API standards, and target packaging configurations.
Blending high-quality base stock oils with additive chemistries for targeted performance.
Conducting rheological and tribological laboratory testing to verify performance limits.
Processing bulk volumes through our automated blending and precision filling systems.
Providing comprehensive export documentation, custom labels, and secure shipping.
Shandong Longhai Technology operates under strict quality standards. Our facility has passed ISO 9001-2015 (Quality Management), ISO 14001 (Environmental Management), and OHSAS 18001 (Occupational Health and Safety) certifications.
Our formulations have also received international manufacturer approvals, including Mercedes-Benz certifications for automatic transmission fluid compatibility. To provide additional security for our global commercial partners, our entire product catalog is insured by the People's Insurance Company of China (PICC).
Our in-house analytical laboratories are equipped with ICP emission spectrometers, cold cranking simulators, kinematic viscometers, and foaming stability baths. This equipment allows us to inspect incoming raw base stocks and verify finished lubricant batches, ensuring stable and reliable performance in the field.
Expert answers addressing regulatory, chemical formulation, and procurement questions for global buyers.
Shandong Longhai Technology brings over 15 years of industry experience to commercial lubricant manufacturing. Our 131-acre facility features advanced automated blending systems, yielding an annual capacity of 200,000 tons. Our plant is ISO 9001, 14001, and 18001 certified. We formulate our products using premium base stocks (Groups II, III, and synthetic PAOs) and additives from global suppliers (Infineum, Lubrizol), ensuring our lubricants perform reliably in demanding environments.
API CK-4 lubricants are designed to meet modern Euro VI and China VI emissions standards. They provide improved oxidation stability, shear resistance, and soot control compared to older CI-4 standards. Formulated with a low sulfated ash, phosphorus, and sulfur profile (low-SAPS), CK-4 oils protect exhaust aftertreatment systems like DPFs and SCR catalysts from poisoning and clogging.
Yes. Our R&D team can adjust formulation parameters to suit different geographical climates. For extreme cold regions, we optimize pour points using pour point depressants and premium synthetic base oils. For high-temperature, high-load tropical environments, we optimize high-temperature high-shear (HTHS) viscosity profiles to prevent viscosity loss and maintain hydrodynamic lubrication.
Our high-speed automated packaging lines operate with a metering accuracy of 1‰ to 2‰, reducing formulation waste. The automation of the packing workflow has increased packaging speeds by 20% to 35%, allowing us to fulfill large-volume export orders quickly and consistently.
PICC insurance provides third-party quality backing for our products, offering peace of mind to international buyers and distributors. It protects your brand and business against unexpected financial liabilities by guaranteeing the consistent chemical performance of our lubricants.
We provide a variety of packaging options to meet retail and industrial needs, including 1-liter and 4-liter plastic bottles for consumer markets, and 18-liter pails or 200-liter steel drums for commercial fleets, industrial equipment, and wholesale distribution.
Explore our complete selection of motor oils, hydraulic fluids, and specialty lubricants formulated for demanding operating conditions.
Contact our technical formulation and logistics teams to request lab samples, discuss customized viscosity parameters, or plan bulk production runs.
Longhai
