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Fahrwunder 15W-40 Diesel Engine Oil API CI-4 is an advanced heavy-duty lubricant engineered to meet the diverse demands of commercial transport vehicles, particularly those complying with National 4 emission standards and above. As a professional-grade diesel engine oil, it delivers dependable performance across operating conditions while providing OEM/ODM clients the flexibility to customize formulation, packaging, and branding to suit their precise technical and market requirements.
The oil’s robust 15W-40 viscosity ensures rapid cold-temperature pumpability and a stable lubricating film under high-temperature and load conditions. This balance of low-temperature viscosity and high-temperature film integrity provides critical protection throughout typical duty cycles, reducing friction and wear from startup through peak engine operation. With API CI-4 certification, this oil is optimized for engines equipped with exhaust gas recirculation (EGR), ensuring reliable lubrication even under high soot contamination and thermal stress. API CI-4 oils deliver enhanced low-temperature pumpability, maintain high-temperature/high-shear viscosity, and protect against piston and ring wear, corrosion, and oil thickening from soot buildup
Fahrwunder’s formulation excels at minimizing abrasive wear and sludge through excellent soot dispersion and acid control. These features extend drain intervals, reduce maintenance needs, and support long engine life—particularly valuable for fleet operators and OEMs managing demanding transport applications. By maintaining cleaner engines, the oil helps preserve performance consistency and reduces total cost of ownership for end customers.
OEM and ODM partners benefit from Fahrwunder’s customizable approach. Clients can define additive properties tailored to specific engine types or environmental regulations, and they can request branded packaging or labeling that aligns with their product strategy. This gives manufacturers, distributors, or fleet integrators full control over their lubricant offerings, ensuring alignment with technical specifications and brand identity.
Fahrwunder 15W-40 API CI-4 is especially well-suited for high-duty diesel engines found in long-haul trucks, buses, and heavy machinery. Its formulation ensures strong shear stability, high viscosity index, and protection against oil breakdown in hot, high-load conditions. These performance benchmarks make it a compelling choice for OEM/ODM partners looking to offer reliable, heavy-duty lubrication solutions under their own brands.
Combining API CI-4 certification with Fahrwunder’s customization capabilities, this product allows clients to provide a high-quality, specification-compliant engine oil that supports both technical performance and brand differentiation.