Engineered for maximum shear stability, temperature control, and wear protection under high RPM operation.
Understanding the mechanical differences and strict specifications defining the modern two-wheeler engine oil market.
Two-wheeler engines operate at significantly higher RPM ranges (up to 10,000–15,000 RPM) compared to passenger cars, generating extreme localized temperatures. This requires base oils with superior Thermal Oxidative Stability and custom polymers that prevent shear degradation.
Unlike passenger cars with separate gearboxes, most motorcycles integrate the engine, wet clutch, and transmission into a single lubricant sump. The oil must offer precise frictional characteristics to prevent clutch slippage while maintaining anti-wear protection for gear trains.
Compliance with JASO T 903 (MA1, MA2 for wet clutches; MB for dry clutch scooters) is critical. Shandong Longhai lubricants are engineered to meet these standards alongside API SN and SP classes, ensuring catalyst compatibility and sludge control.
In response to global emission protocols (such as Euro 5, Bharat Stage VI, and China VI), the motorcycle industry is rapidly transitioning from traditional mineral 20W-40 and 20W-50 formulations to ultra-efficient, low-viscosity, semi-synthetic and fully synthetic fluids like 10W-30, 10W-40, and 5W-30. Lowering viscosity minimizes hydrodynamic drag, directly improving fuel economy and lowering carbon emissions. However, this transition requires advanced additive chemistry, specifically high-stability Shear Stability Index (SSI) polymers and organic friction modifiers. Shandong Longhai’s laboratory has pioneered formulations that maintain fluid film thickness under boundary lubrication conditions, ensuring that engine wear is mitigated despite lower viscosity profiles.
Additionally, the global shift toward electric and hybrid two-wheelers creates demand for specialized dielectric cooling fluids. As electric drivetrains become more common, e-motorcycles will require lubricants that prevent electrical arcing while protecting reduction gearboxes. By investing more than 5% of annual revenues into scientific development, Shandong Longhai is actively formulating next-generation e-fluids to serve international distributors and vehicle developers.
Established in 2009 and headquartered in the industrial hub of Zibo, Shandong, our company is a recognized high-tech enterprise integrating research, development, formulation, advanced blending, and global trade. We have spent over 15 years building a comprehensive vertical lubrication ecosystem, supporting industrial, transport, and commercial operations worldwide.
Under our proprietary brand "Century Longhai" and our international strategic partnership brand British "A Ba" series, our formulations deliver performance across a wide spectrum of classes: heavy-duty diesel engine oil, high-efficiency gasoline engine oil, industrial gear oil, hydraulic transmission fluid, anti-wear hydraulic oil, specialized engineering machinery fluid, natural gas engine oil, fully synthetic fluids, automotive urea solutions, eco-friendly antifreeze, and specialized two-wheeler lubricants.
Our commitment to quality is backed by comprehensive product liability insurance underwritten by PICC (People's Insurance Company of China), providing our global distribution network with complete commercial reliability and peace of mind.
How automation, precision blending, and strategic port-side logistics optimize the cost-to-performance ratio for international buyers.
Our Zibo production complex is equipped with state-of-the-art automated blending systems utilizing precise thermal control, pneumatic agitation, and multi-stage filtration to ensure every batch of oil meets viscosity limits within fractional tolerances. Our filling lines utilize advanced metering filling principles, ensuring an accuracy range of 1‰–2‰.
This automated packaging integration increases our production speed by 20% to 35% compared to standard semi-automated facilities. For global importers, this efficiency translates to shortened lead times, rapid turnaround on large custom orders, and reduced operational overhead, making our export packages highly competitive.
Motorcycle lubricants must operate under extreme regional conditions. We customize our formulations to meet these local challenges.
In regions such as Southeast Asia, South Asia, and the Middle East, two-wheelers endure extreme ambient temperatures while idling in gridlock. Air-cooled engines can see cylinder head temperatures climb above 150°C. Our formulations integrate shear-stable polymers that resist viscosity thinning, maintaining hydrodynamic lubrication to prevent piston scuffing.
Last-mile delivery fleets place heavy demands on commercial two-wheelers. Continuous idling, rapid acceleration, and heavy carrying loads accelerate thermal degradation and soot buildup. Our high-performance additive packages contain active dispersants that suspend soot particles, preventing ring sticking and cylinder wear.
For high-altitude regions or northern climates, cold-start viscosity is critical. Our semi- and fully synthetic motor oils are formulated with high-quality base fluids that offer low-temperature pour points. This ensures immediate oil flow to critical valve train components within seconds of ignition, minimizing cold-start wear.
From custom chemical specifications to bespoke packaging design, we help global partners build high-value local brands.
Our engineering laboratory customizes lubricants to match specific target environments, local vehicle specifications, and regulatory standards. Whether you require a cost-competitive mineral JASO MA 20W-50 oil or a high-performance fully synthetic 4T 10W-40 JASO MA2/API SP engine fluid, we formulate products to deliver reliable performance under demanding conditions.
Our automated production facility accommodates both high-volume wholesale shipments and smaller custom trial runs. We support packaging sizes ranging from 0.8L and 1L bottles for retail, up to 18L buckets, 200L drums, and IBC containers for industrial fleets and bulk distribution networks.
Our processes conform to ISO 9001:2015 Quality Management, ISO 14001 Environmental Management, and ISO 45001 Health and Safety systems. We offer product formulations certified to meet Mercedes-Benz, API, JASO, and other OEM requirements, backed by third-party testing to support fast market entry.
We provide comprehensive brand development support, including container design, label printing, regulatory compliance guidance, and detailed Technical Data Sheets (TDS) and Material Safety Data Sheets (MSDS) to facilitate import clearances.
1. Demand Analysis
Custom design matching target specifications and pricing criteria.
2. Formula Development
Laboratory blending, additive balancing, and viscosity tuning.3. Sample Testing
Rigorous ASTM standard tests and client performance validation.4. Production & Delivery
Precision blending, automated filling, packaging, and shipping.5. After-Sales Support
Batch documentation, technical training, and market feedback tracking.Our operations follow strict international standards to ensure product quality and batch-to-batch consistency under challenging operating conditions.
A transparent look inside our production areas, testing laboratories, and logistics operations.
Key technical parameters and quality assurance steps to review before finalizing bulk motorcycle oil contracts.
When purchasing two-wheeler lubricants in bulk, selecting a supplier based solely on unit cost can lead to quality variations and potential engine performance issues. Technical buyers should focus on quality metrics that impact long-term reliability. Below are four key parameters our engineering teams monitor to ensure product consistency.
Two-wheeler gearboxes subject polymer molecules to high mechanical shear. High-viscosity index improvers can break down quickly, leading to drop-offs in oil viscosity. Ensure your supplier defines their formulation's SSI to prevent accelerated engine wear.
Verify cold cranking viscosity parameters at low temperatures (ASTM D5293). Selecting the correct cold cranking properties ensures sufficient oil pressure is achieved quickly upon cold starting, protecting key valve components.
Exceeding recommended sulfated ash levels can result in deposits on combustion chamber surfaces and spark plug fouling. Correctly formulated ash levels help extend spark plug and exhaust catalyst service life.
Expert answers to common technical, logistics, and quality assurance questions from bulk buyers and distributors.
JASO MA2 oils are engineered with high static and dynamic friction coefficients to prevent clutch slippage in wet-clutch engines. JASO MB oils are designed with friction modifiers for low friction, specifically for dry-clutch scooters, and should not be used in wet-clutch systems.
No. Standard passenger car motor oils contain friction modifiers to improve fuel economy. In a motorcycle with a shared sump, these modifiers can reduce wet-clutch friction, resulting in slippage, power loss, and premature clutch wear.
We inspect raw materials at intake and test final products prior to packaging. We analyze viscosity profiles, elemental additive levels, pour points, and flashpoints for every production batch, keeping reference samples for traceability.
Standard OEM MOQs vary depending on packaging sizes (typically starting from 5,000 liters total volume per blending line). We support lower test runs for strategic trial shipments. Contact our support team for a detailed logistics quote.
Beyond two-wheeler solutions, we supply advanced industrial lubricants and specialty gear systems globally.
Longhai