Engineered for High-Pressure Direct Injection, Extreme Thermal Stability, and Extended Drain Intervals
Understanding the Thermo-Mechanical Tribology of Turbocharged Direct Injection Engines
Turbocharged Direct Injection (TDI) diesel and gas engines represent the pinnacle of modern thermal efficiency and torque output in automotive, heavy transport, and industrial machinery. Operating under extreme peak cylinder pressures exceeding 200 bar and turbocharger shaft speeds in excess of 200,000 RPM, TDI engines impose severe stress on the engine lubricant. As a leading China TDI Engine Oil Manufacturer, Shandong Longhai Lubrication Technology Development Co., Ltd. formulates advanced lubrication systems designed specifically to prevent soot agglomeration, unit injector valve-train wear, thermal oxidation, and catalytic poison formation.
1. Unit Injector / Common-Rail Wear: High mechanical shearing on cam lobes driving unit injectors demands exceptional High-Temperature High-Shear (HTHS) viscosity maintenance (≥ 3.5 mPa·s).
2. Soot Dispersancy & Viscosity Control: Direct injection produces sub-micron carbon soot. Our ashless dispersant polymers encapsulate soot particles to prevent abrasive wear and oil thickening.
3. Low-SAPS Exhaust Aftertreatment Protection: Modern TDI vehicles utilize Diesel Particulate Filters (DPF), Selective Catalytic Reduction (SCR), and Gasoline Particulate Filters (GPF). Low Sulfated Ash, Phosphorus, and Sulfur (SAPS) prevents catalyst poisoning and DPF blockages.
Utilizing shear-stable Star Polymer Viscosity Index Improvers (VII), our TDI oils resist mechanical breakdown under extreme shear stresses of high-rpm turbos, maintaining viscosity grade across 30,000+ km drain intervals.
Formulated with Group III+ synthetic hydrocracked and Group IV Polyalphaolefin (PAO) base oils. Low volatility (NOACK < 9%) drastically reduces oil consumption and turbocharger deposit formation.
Fully compliant with international specifications including API CK-4, API SP, ACEA C3/C5, VW 504 00/507 00, VW 505 01, MB 229.51/229.52, and BMW Longlife-04.
Scale, Precision Automation, and Global Export Capability from Zibo, Shandong
Shandong Longhai Lubrication Technology Development Co., Ltd. operates state-of-the-art automatic blending kettles and high-speed intelligent filling lines. Utilizing mass-flow metering filling technologies, our system guarantees filling accuracy within 1‰ to 2‰. This high-precision automation increases filling throughput by 20% to 35% while eliminating cross-contamination risk, safeguarding product purity for high-tier TDI formulations.
Reinvesting over 5% of annual revenue into R&D, Longhai Technology maintains strategic research partnerships with top chemical engineering universities. Equipped with ICP-OES elemental spectrometers, CCS cold-cranking simulators, and mini-rotary viscometers (MRV), our precision laboratories ensure every batch meets exact OEM specifications under harsh operating conditions.
Comparative Chemistry and Application Spectrum for Engine Oils & Industrial Fluids
| Specification Standard | Sulfated Ash (wt%) | HTHS Viscosity (mPa·s) | Target TDI Application Engine / System | Primary Benefit |
|---|---|---|---|---|
| API CK-4 Fully Synthetic | ≤ 1.0% | ≥ 3.5 (15W-40 / 10W-30) | Heavy-Duty Turbocharged Diesel, Off-Highway Machinery | Soot dispersal, anti-wear & oxidation resistance |
| ACEA C3 / C5 Low-SAPS | ≤ 0.8% | ≥ 3.5 (C3) / ≥ 2.6 (C5) | Modern European Light TDI Passenger Cars & Vans (DPF equipped) | Exhaust aftertreatment longevity & fuel economy |
| API SP / SN Plus Synthetic | ≤ 0.9% | ≥ 2.9 (5W-30 / 0W-20) | Turbocharged Direct Injection Gasoline (TGDI) | Mitigates Low-Speed Pre-Ignition (LSPI) and timing chain wear |
| Heavy-Duty Industrial Gear (CKD) | N/A | High Load Anti-Scuffing | Extreme pressure gearboxes & industrial reducers | Micro-pitting protection & seal compatibility |
Next-Generation Formulations for Zero-Carbon & High-Efficiency Powertrains
Development of SAE 0W-16 and 0W-20 formulations with advanced organo-molybdenum friction modifiers. Maintaining film strength under high-rpm turbine shaft lubrication while decreasing internal engine fluid friction by up to 2.8%.
Integrating chemical nano-sheets that form a self-healing tribo-film on cylinder liners and piston rings. Reduces boundary lubrication friction coefficient to ultra-low levels (< 0.05) under severe TDI cold-start conditions.
Transitioning base oils toward sustainable, re-refined, and bio-derived synthetics compatible with alternative fuels (Biodiesel blends B20/B100, Hydrogen internal combustion TDI systems, and Synthetic E-Fuels).
End-to-End Private Labeling, Tailored Viscometric Blending, and Brand Engineering
Whether you require targeted fully synthetic, semi-synthetic, or bio-lubricant blends, our laboratory formulates chemistry engineered for specific regional ambient temperature extremes, low-grade sulfur fuel protection, or specialized industrial duty cycles.
Supporting rapid trial batches to multi-container mass production across engine oils, gear oils, hydraulic transmission fluids, and industrial lubricants. Packaging options range from 1L, 4L, 7L bottles to 200L drums and IBC totes with full graphic design support.
Insured by PICC China People's Insurance Company & Mercedes-Benz Automatic Transmission Certified
Shandong Longhai Lubrication Technology Development Co., Ltd. operates under international quality and environmental management standards. Certified by ISO 9001:2015 Quality System, ISO 14001 Environmental Management, and OHSAS 18001 Occupational Health Management, our company holds authoritative Mercedes-Benz automatic transmission fluid homologation. Products are protected by comprehensive quality insurance issued by PICC, offering unmatched confidence for global importers, distributors, and fleet procurement officers.
131 Acres of Production Base with Precision Analytical Testing Instruments
From Technical Consultation to Global Logistics & Export Execution
Evaluate target vehicle fleet requirements, local engine specs, SAPS limits, and climate conditions.
Custom blend base stocks (Group III+/PAO) with targeted additive packages (API/ACEA aligned).
Comprehensive lab testing for CCS viscosity, NOACK volatility, shear stability, and oxidation life.
High-precision automated filling (1‰-2‰ error limit), strict QA inspection, and containerized dispatch.
Expert Answers on TDI Engine Oils, Low SAPS Requirements, and Import Logistics
Complete Chemical Solutions covering Gasoline Engines, Heavy-Duty Diesel, Motorcycles & Industrial Gears
Longhai
