Medium Speed Diesel Engine Oil for Marine Trunk Piston Engines – YEFE Marlub 4040
Medium Speed Diesel Engine Oil for Marine Trunk Piston Engines – YEFE Marlub 4040
Medium Speed Diesel Engine Oil for Marine Trunk Piston Engines – YEFE Marlub 4040
Premium medium speed diesel engine oil for marine trunk piston engines running on distillate or light residual fuels up to 3.5% sulfur, providing advanced cleaning power against soot and black sludge, distinctive corrosion protection, efficient water separation, enhanced wear control and extended oil life through remarkable thermo-oxidative stability.
Key Highlights
Premium Marine Diesel Engine Oil · Designed for Medium-Speed Trunk Piston Engines · Suitable for Distillate & Light Residual Fuels up to 3.5% Sulfur · Advanced Cleaning Power Against Soot & Black Sludge · Distinctive Corrosion Protection with Reserve Alkalinity · Efficient Water Separation & Demulsibility · Enhanced Wear Control for Pistons, Liners & Gears · Extended Oil Life with Remarkable Thermo-Oxidative Stability
Packaging & Branding Support
YEFE offers affordable and adaptable customization solutions based on the package solutions and branding presentation that distributors and brand owners can introduce lubricant products easily and in a professional manner.
We plan to offer our customization services as a way of minimizing time-to-market with no compromise in the quality of the products and supply reliability.
Packaging Size Options
To facilitate its presence in the market through various sales channels, YEFE has several sizes of its packaging. The customers have the freedom to use appropriate bottle, drum or bulk oil forms depending on the retail strategy, the scale of distribution as well as the logistics needs.
The packaging is in the form of small retail jars, medium sized containers, large drums and bulk oil supply in workshops or industrial customer use. The combination of the packaging sizes will be manipulated based on the volume of orders and positioning in the market.
Packaging Size Options
To facilitate its presence in the market through various sales channels, YEFE has several sizes of its packaging. The customers have the freedom to use appropriate bottle, drum or bulk oil forms depending on the retail strategy, the scale of distribution as well as the logistics needs.
The packaging is in the form of small retail jars, medium sized containers, large drums and bulk oil supply in workshops or industrial customer use. The combination of the packaging sizes will be manipulated based on the volume of orders and positioning in the market.
YEFE Marlub 4040 provides:
- Advanced cleaning power with exceptional detergency to combat the accumulation of soot and black sludge, enhancing the engine’s ability to handle heavy fuel impurities and maintain a clean engine environment.
- Distinctive corrosion protection through effective neutralization of acidic byproducts, safeguarding the engine against corrosive wear via a unique reserve alkalinity mechanism.
- Efficient water separation thanks to superior demulsibility traits that quickly and effectively separate water from the oil, ensuring consistent lubrication performance.
- Enhanced wear control driven by robust antiwear technology that provides excellent control over piston and liner wear and contributes to reliable gear performance.
- Extended oil life due to remarkable thermo-oxidative stability, significantly retarding oil degradation and supporting prolonged lubricant service intervals and sustained performance.
Typical specifications and performance levels:
- Performance level: API CF.
- OEM recommendations: Suitable for medium-speed marine diesel engines from manufacturers such as Daihatsu, MAN Diesel & Turbo, Wärtsilä and Yanmar where this lubricant class is specified.
- Fuel type: Distillate and light residual fuels containing up to 3.5% sulfur.
- Base oil type: High-quality paraffinic mineral base stocks with marine diesel engine oil additive technology.
| Application Category | Recommended Use |
| Engine Type | Medium-speed trunk piston marine diesel engines operating on distillate or light residual fuels requiring premium CF-level lubrication with advanced cleaning and wear control. |
| Fuel Type | Engines running on distillate and light residual fuels with up to 3.5% sulfur content, typical of marine fuel usage where higher sulfur levels and fuel impurities must be managed. |
| Operating Segment | Marine propulsion and auxiliary engines in vessels using medium-speed trunk piston engines, as well as specified reduction gear systems where this lubricant class is required. |
| Operating Conditions | High-output, medium-speed continuous operation where cleaning power, wear protection, oxidation stability, corrosion protection and water separation are critical. |
| Key Function | Provide reliable lubrication, combat soot and sludge build-up, neutralize acidic byproducts, minimise wear, protect against corrosion and ensure efficient water separation. |
| Protection Requirements | Applications demanding advanced detergency, distinctive corrosion protection with reserve alkalinity, superior demulsibility and robust antiwear performance for pistons, liners and gears. |
| Target Users | Ship owners, fleet operators, marine engineers and shipyards seeking high-performance medium-speed diesel engine oil for trunk piston engines and specified reduction gear systems. |
| Packaging Availability | Available in 205L drums and bulk supply to support shipboard storage, engine room operations and marine fleet logistics. |
About YEFE | Manufacturer Behind the Product
YEFE (Shenzhen) Lubricating Oil Co., Ltd. is a professional lubricant manufacturer and global supplier based in Guangdong, China. We specialize in the formulation, blending, filling, and private label production of automotive and industrial lubricants.
With automated production lines, standardized operating procedures, and full-process quality traceability, YEFE delivers stable and consistent lubricant products to distributors, importers, and brand owners across South America, Southeast Asia, the Middle East, and Africa.
Every product is supported by laboratory testing and controlled manufacturing processes to ensure viscosity accuracy, oxidation stability, and long-term performance reliability.
Automated blending & filling production lines
Full SAE grades & API standards coverage
In-house quality testing & batch traceability
OEM / ODM support from formula to packaging
Export experience across emerging markets
Frequently Asked Questions
MOQ depends on the product type, packaging size, and customization requirements. YEFE offers flexible MOQs to support market testing, regional launches, and long-term supply programs. Please contact us with your target packaging and market to receive a tailored quotation.
Yes. YEFE provides multiple packaging size options, including small retail bottles, medium containers, large drums, and bulk oil supply. Packaging size combinations can be adjusted based on your sales channel and logistics needs.
Yes. YEFE offers free bottle design and brand packaging design support for OEM and private label customers. This includes label layout and packaging appearance to help ensure a professional, market-ready presentation.
Production lead time varies depending on order volume, packaging selection, and customization requirements. Standard orders typically require several weeks for production. Exact lead time will be confirmed after order details are finalized.
Yes. YEFE provides complete export-ready documentation, including TDS, MSDS, COA, and other required shipping documents. We support international shipments to multiple global markets.
All YEFE products are manufactured using standardized production processes and automated blending systems. Each batch undergoes laboratory testing and quality verification to ensure consistent performance and stable supply.
Yes. YEFE supports trial or initial orders to help customers evaluate product quality, packaging suitability, and market response before scaling up.
You can contact YEFE through the website inquiry form or by email. Our team will assist you with product selection, packaging options, quotation, and order confirmation.