Premium factory-direct engineering designed to protect components, increase operational lifetimes, and optimize performance under extreme load variations.
Established in 2009 in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. has grown to become a leading high-tech enterprise integration hub for R&D, precision manufacturing, and global exporting of specialized automotive lubricants.
Over the past 15 years, we have built a complete upstream and downstream industrial chain system. Longhai owns the household brand "Century Longhai" and serves as the strategic partner for the prestigious British brand "A Ba" series. Backed by the quality-assurance guarantees of the People's Insurance Company of China (PICC), our lubricants portfolio is certified to defend critical engine components from thermal stresses under extreme work cycles.
A technical assessment of high-performance four-stroke lubrication challenges, formulation factors, and environmental durability profiles.
Motorcycle engines present a significantly harsher operating environment than automotive passenger vehicle engines. Operating at higher RPMs (often exceeding 10,000 RPM) and higher power density ratios, motorbike engines run hotter, suffer higher mechanical shear rates, and demand multi-functional protection profiles. In most four-stroke motorbikes, a single fluid must lubricate the engine, the gearbox, and the wet clutch assembly. This creates a triad of conflicting engineering demands:
A. Clutch Friction Optimization (JASO MA2 vs MB): To prevent clutch slippage under high torque loads, motorcycle oil must maintain a high coefficient of static and dynamic friction. Automotive oils contain friction modifiers that compromise clutch engagement. Shandong Longhai's formulations comply strictly with JASO T 903:2016 standards, ensuring precise wet-clutch performance and torque transfer without slippage (JASO MA2) or maximized efficiency for dry-clutch scooters (JASO MB).
B. Gearbox Shear Stability: The gears within a motorbike transmission subject the lubricant to extreme temporary and permanent shear stresses. Standard viscosity modifiers fail, leading to rapid oil thinning. Our formulations utilize highly shear-stable polymers that maintain the protective oil film thickness (HTHS viscosity) even under extreme mechanical shearing, preventing gear pitting and micro-pitting.
C. Thermal and Oxidative Resistance: Small engine layouts are often air-cooled or have minimal radiator space. This yields higher localized oil sump temperatures. If the oil lacks sufficient antioxidant additives and high-quality base oils, thermal cracking occurs, leaving carbon deposits and varnish on pistons and rings. Our synthetic formulations integrate active dispersants that hold contaminants in suspension, keeping the engine clean across extended drain intervals.
The global motorcycle market is witnessing a major regulatory shift. With Euro 5 and Bharat Stage VI (BS-VI) emission regulations requiring tighter exhaust monitoring, motorcycle manufacturers are designing engines with closer tolerances. Consequently, the industry is transitioning away from heavier mineral oils like 20W-50 to low-viscosity, high-performance synthetics like 10W-30 and 5W-40. Viscosity reductions must not compromise oil film strength, meaning manufacturers rely heavily on Group III hydrocracked base stocks and synthetic esters to balance energy efficiency with engine durability.
Additionally, modern fleet operations (such as last-mile food delivery and logistics networks in urban centers) demand extended oil drain intervals (ODI) to control total cost of ownership. Shandong Longhai addresses these macro trends by offering tailored synthetic formulations containing advanced zinc dialkyldithiophosphate (ZDDP) anti-wear agents, balancing wear protection, soot handling, and exhaust catalyst compatibility.
Operating out of Zibo, Shandong—a major hub for chemical refining and industrial manufacturing in China—gives Shandong Longhai structural advantages that translate into significant value for global buyers:
Feedstock Access & Logistics: The proximity to major petrochemical refineries ensures steady, cost-competitive access to premium Group II and Group III base oils, as well as crucial chemical additives. This minimizes raw material supply chain disruptions, allowing us to maintain predictable production lead times.
Advanced Production Scale: Spanning 131 acres, our facility houses high-capacity automated blending vessels. Combined with smart filling machinery, this line reduces human error, guarantees 1‰–2‰ volumetric accuracy, and delivers a 20% to 35% speed improvement compared to older generation semi-automated plants. We possess the scale to manage both high-volume distributor contracts and specialized custom formulation projects with the same level of precision.
Leverage our engineering expertise and automated packaging processes to build, scale, and distribute your private label lubricant brand.
Fully synthetic, semi-synthetic, and mineral lubricant formulations tailored to high-RPM motorcycle engines, industrial gears, and heavy duty diesel applications matching API/JASO specs.
Our smart line adapts to varying production volumes, supporting small-batch validation runs to continuous container-load blending, matching dynamic regional market demand.
Backed by ISO 9001-2015, ISO 14001, and ISO 18001 frameworks. Every batch undergoes rigorous ASTM laboratory testing to ensure complete viscosity-index and shear-stability compliance.
We provide full-service bottle molding, industrial label design, and multilingual documentation support (MSDS/TDS) to streamline regulatory compliance in target destination countries.
Analyzing application parameters, target markets, viscosity requirements, and certification thresholds.
In-house chemical synthesis, selecting custom additives for specific RPM and thermal environments.
Laboratory testing of samples to verify kinematic viscosity, flash point, HTHS, and wear scar metrics.
Automated blending, high-speed bottling, custom labeling, packaging quality checks, and shipping logistics.
Technical advisory services, batch record traceability, shelf-life monitoring, and formulation updates.
Engineered for passenger cars, heavy-duty industrial machineries, and high-performance commercial vehicles.
Formulating lubricants to perform reliably across extreme ambient temperatures and distinct regional operating cycles.
In hot, humid areas, ambient temperatures frequently exceed 40°C, and heavy traffic causes engines to idle for long periods. This leads to heat building up in motorcycle engines, increasing the risk of thermal breakdown and thinning of the oil. For these markets, Shandong Longhai designs lubricants with high Viscosity Indexes (VI) and premium base oils. This ensures that the oil maintains viscosity film integrity and critical engine parts remain protected under extreme heat.
Desert and high-altitude areas present unique challenges, including large temperature swings between day and night, coupled with abrasive ambient dust. In these environments, standard oils can suffer from rapid viscosity changes and soot buildup. We formulate our export-grade oils with specialized anti-wear additives and dispersants that trap airborne contaminants, preventing cylinder scuffing and maintaining smooth performance across cold starts and hot daytime operations.
Urban delivery networks run motorcycles and light commercial vehicles through constant cycles of starting, stopping, and idling. This behavior prevents engines from reaching optimal operating temperatures, accelerating fuel dilution and moisture accumulation in the oil sump. Shandong Longhai provides customized semi-synthetic and fully synthetic formulations designed to resist low-temperature sludge formation and protect components during frequent engine restarts.
Beyond small passenger vehicles, mining machinery, gearboxes, and hydraulic systems demand high-pressure wear protection. Our industrial oils, including anti-wear hydraulic oil and L-CKD industrial gear oil, are formulated with extreme-pressure (EP) additives. These additives create a protective boundary layer on metal surfaces, preventing wear under heavy loads and helping operations minimize maintenance downtime.
A view inside Shandong Longhai's blending systems, QC testing labs, and product warehousing facilities.
Shandong Longhai maintains systematic compliance models to guarantee product safety and regulatory acceptance across global borders.
To support global supply chains, Shandong Longhai complies with international quality, environmental, and safety standards. Our manufacturing facilities are certified to ISO 9001-2015 (Quality Management System), ISO 14001 (Environmental Management System), and ISO 18001 (Occupational Health & Safety Management System). In addition, our premium formulations carry OEM approvals, including automatic transmission fluid certification from Mercedes-Benz, confirming our products' reliability under challenging service conditions.
These certifications demonstrate our commitment to quality, environmental responsibility, and worker safety, helping partners navigate local regulatory requirements during customs clearance.
Key technical details, documentation requirements, and logistics considerations for B2B procurement managers.
Exporting lubricants internationally requires precise document management to ensure smooth customs clearance. Shandong Longhai provides complete documentation packs for every batch, including Material Safety Data Sheets (MSDS) compliant with GHS regulations, and Technical Data Sheets (TDS) detailing kinematic viscosity (at 40°C and 100°C), viscosity index, pour point, flash point, and density metrics. Additionally, we provide Certificates of Analysis (COA) matching the shipment to our laboratory retention samples for verification.
Lubricants are high-density liquid products, making container space utilization critical for transport economics. We offer standard retail packaging sizes (such as 800ml, 1L, 4L, and 5L plastic/metal cans) and bulk transport options (including 200L steel drums and 20,000-liter Flexitanks). Flexitanks help maximize payload volume in standard 20ft dry containers, reducing per-ton freight costs. Our export logistics team coordinates shipping routes from major ports like Qingdao, helping optimize transit times and transport conditions.
Depending on the destination country, customs duties can impact importing costs. Under trade frameworks like the Regional Comprehensive Economic Partnership (RCEP) and various bilateral free trade agreements (FTAs) between China and regions across Southeast Asia, South America, and Africa, buyers may be eligible for preferential import tariffs. Shandong Longhai provides official Certificates of Origin (Form E, Form RCEP, etc.) to help importers minimize duty payments and lower their landed costs.
Technical answers to common questions regarding formulation standards, import processes, and supply logistics.
Heavy-duty formulations engineered for gearboxes, transmission systems, compressors, and high-pressure industrial equipment.
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