Turbocharged Direct Injection (TDI) technologies represent the spearhead of internal combustion engine efficiency within diesel-powered commercial fleets, marine transporters, and engineering heavy machinery. The thermal stress threshold inside a modern high-pressure common-rail TDI engine significantly surpasses that of historical naturally aspirated architectures. These extreme parameters present critical lubrication challenges: localized boundary temperatures reaching up to 300°C, severe soot agglomeration causing premature oil thickening, and intensive shear forces that break down inferior polymer chain viscosity modifiers.
As a global B2B procurement division, selecting a certified TDI Engine Oil Factory Supplier is not merely a transaction; it is a critical strategy to minimize Total Cost of Ownership (TCO) and maximize machine uptime. Shandong Longhai Lubrication Technology Development Co., Ltd. offers customized molecular designs that tackle these wear patterns directly, preserving fluid dynamic integrity under maximum continuous load conditions.
Advanced polar dispersant chemistries encase soot particulates at the sub-micron scale, preventing structural thickening and keeping high-soot diesel oils flowing smoothly in tight oil galleries.
Formulated with premium synthetic base stocks (Group II/III/PAO) designed to prevent thermo-oxidative breakdown and lacquer formations on hot piston crowns.
High Shear Stability Index (SSI) modifiers ensure that the viscosity profile remains strictly within spec even under relentless boundary-zone shear operations.
Years of R&D Experience
Tons Annual Production Capacity
Acres Blending Facility Scale
Cities Across Global Markets
Established in 2009 and based out of Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech manufacturer specializing in the research, development, and mass formulation of high-grade lubricants. Over the past 15 years, our company has built a highly integrated industrial ecosystem designed to cater to the lubrication profiles of modern transportation fleets and large-scale industrial infrastructures.
Longhai Technology operates a dual-brand strategic portfolio: our proprietary mark "Century Longhai", alongside our international premium strategic cooperation brand, the British "A Ba" series. Our wide array of certified formulations covers diesel engine oil, gasoline engine oil, industrial gear oil, hydraulic transmission oil, anti-wear hydraulic oil, special agricultural machinery oil, natural gas engine oil, fully synthetic fluids, automatic transmission fluids (ATF), and specialized antifreeze solutions. Our brands are fully protected under product liability policies backed by PICC China People's Insurance Company, highlighting our commitment to quality security and peace of mind.
We offer multi-grade synthetic and semi-synthetic solutions engineered for TDI systems, formulated using Group II/III base stocks combined with advanced additive packages sourced from leading global chemical laboratories.
| TDI Engine Oil Parameter | API CK-4 / CJ-4 Spec | API CI-4 / CI-4 Plus Spec | B2B Operational Benefit |
|---|---|---|---|
| Base Oil Class | Fully Synthetic (PAO/Group III) | Semi-Synthetic / Refined Group II | Extended oil drain intervals (ODI) up to 80,000 km. |
| Soot Dispersion Limit | Excellent (up to 8% soot load) | High (up to 5% soot load) | Prevents abrasiveness and timing chain wear. |
| Total Base Number (TBN) | 10 - 12 mg KOH/g | 9 - 11 mg KOH/g | Neutralizes corrosive combustion acids from varying fuel qualities. |
| SAPS Content | Low SAPS (Euro VI DPF Compatible) | Mid SAPS (Euro IV/V Compatible) | Protects Diesel Particulate Filters and SCR catalysts. |
Commercial fleets, shipping ports, mining networks, and industrial contractors operate within low-margin environments where machine downtime can stop progress. At Longhai Technology, we specialize in high-efficiency B2B supply lines that keep fleets operational in all conditions. Our wholesale network exports to over 29 provinces and municipal zones in China, alongside expanding trade links to Southeast Asia, Central Europe, South America, and Africa.
We deliver in various packaging formats to match your operations: 1L and 4L bottles for retail, 18L pails for regional workshops, and 200L drums/IBC tanks for heavy industrial consumers.
Our labs test every raw base oil batch and additive package. Viscosity indexes, flashpoints, pourpoints, and multi-element ICP wear scans are recorded to guarantee product stability.
Whether configuring high-viscosity index mineral formulas for tropical climates or ultra-low cold-flow properties for sub-zero engines, we tailor lubricants for your local climate conditions.
At Longhai Technology, we help distributors, heavy equipment producers, and logistics networks build customized product portfolios. Our blending system utilizes digital flow metering to guarantee filling accuracy within 1‰ to 2‰. By upgrading our processing systems, we have improved filling cycle speeds by 20% to 35% without losing batch accuracy, supporting both fast turnaround times and high manufacturing consistency.
Our chemical engineering plants and physical laboratory spaces conform to strict global compliance certifications, showing our dedication to product quality and batch consistency.
Longhai Lubrication Technology maintains integrated certifications across core operational areas:
Turbocharged Direct Injection (TDI) engines operate at elevated combustion pressures, generating high volumes of carbonaceous soot. If not controlled, these soot particles bind together, causing abrasive wear on timing components and increasing oil viscosity. Specialized TDI oils utilize ashless dispersants to keep soot particles suspended individually, preventing viscosity spikes and protecting internal components.
We formulate our engine oils using Group II hydrotreated oils, Group III synthetic base stocks, and Polyalphaolefins (PAO). The choice of base stock depends on the targeted API classification (e.g., CK-4 or CI-4) and the climate conditions of the destination market, ensuring optimal cold-flow performance and high thermal stability.
Low-SAPS oils contain lower concentrations of Sulfated Ash, Phosphorus, and Sulfur. Standard levels of ash and minerals can block Diesel Particulate Filters (DPF) and degrade catalytic converters. Our CK-4 formulas utilize low-ash additive packages that extend the operating life of DPF and Selective Catalytic Reduction (SCR) systems.
MOQ targets vary by container size: small bottles (1L/4L) typically require a minimum batch of 10 kiloliters per run to optimize packaging setups, while bulk shipments (drums/IBC tanks) feature lower MOQs. Contact our sales department to discuss your custom packaging requirements.
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