Full Synthetic 4-Stroke Motorcycle Engine Oil 5W-40 for High-Performance Bikes

Full Synthetic 4-Stroke Motorcycle Engine Oil 5W-40 for High-Performance Bikes

Full Synthetic 4-Stroke Motorcycle Engine Oil 5W-40 for High-Performance Bikes

Full synthetic 5W-40 4-stroke motorcycle engine oil for high-performance air-cooled engines, offering excellent protection, cleanliness, low smoke and smooth gear and wet clutch operation under demanding riding conditions.

Key Highlights

Full Synthetic 4-Stroke Engine Oil · 5W-40 Viscosity Grade · Designed for High-Output Air-Cooled Motorcycle Engines · Excellent Engine Protection & Cleanliness · Low Smoke Performance · Suitable for Oil-Injection & Premix Systems · Protects Gears and Wet Clutches · Compatible with SF/SG/SH/SL Transmission Requirements

YEFE Motrax 4T FS 5W-40 is a premium full synthetic motorcycle engine oil developed for high-output, air-cooled 4-stroke gasoline engines that demand strong protection, cleanliness and reliable performance in all riding conditions. Its advanced formulation with synthetic base oils and carefully balanced performance additives ensures stable lubrication, excellent engine cleanliness and low smoke, even when engines are operated at high temperatures and high speeds. This oil is suitable for both oil-injection and premix lubrication systems, helping riders maintain a consistent oil-to-fuel ratio as recommended by manufacturers while enjoying smooth and responsive throttle performance. YEFE Motrax 4T FS 5W-40 also offers reliable protection for motorcycle transmissions where SF, SG, SH or SL engine oils are specified, providing excellent gear and wet clutch performance for a confident riding experience. With its 5W-40 viscosity grade, YEFE Motrax 4T FS delivers fast oil circulation during cold starts and a stable oil film at high operating temperatures, making it an ideal choice for daily commuting, spirited road riding and demanding conditions in modern 4-stroke motorcycles.

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.

Engine oil packaging size options including bottles, drums, and bulk oil

Packaging Size Options

Engine oil packaging size options including bottles, drums, and bulk oil

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.

Engine oil bottle design drawing showing dimensions and structure Custom 4L engine oil bottle with private label packaging by YEFE

YEFE Motrax 4T FS 5W-40 provides:

  • Full synthetic formulation tailored for high-output, air-cooled 4-stroke gasoline motorcycle engines requiring stable lubrication under severe operating conditions.
  • Excellent protection against piston seizure, engine deposits and ring sticking, helping maintain compression and engine efficiency over time.
  • Low ash formulation that reduces the risk of pre-ignition and spark plug fouling, supporting reliable combustion and consistent engine response.
  • Very good cleanliness and detergent performance to keep pistons, combustion chambers and exhaust ports cleaner, contributing to longer engine life.
  • Easy miscibility with gasoline to ensure a stable, homogeneous oil-fuel mixture even at low ambient temperatures in premix systems.
  • Reliable protection for motorcycle transmissions where SF, SG, SH or SL engine oil is prescribed, providing smooth gear engagement and wet clutch performance.
  • Stable 5W-40 viscosity profile that supports fast circulation during cold starts while maintaining a strong lubricating film at high operating temperatures.

Typical specifications and performance levels:

  • SAE viscosity grade: 5W-40.
  • API: SN (backwards compatible with SF/SG/SH/SL applications where appropriate).
  • JASO: MA/MA2, suitable for wet clutch applications in motorcycles.
Application Category Recommended Use
Engine Type High-output, air-cooled 4-stroke gasoline motorcycle engines requiring full synthetic 5W-40 engine oil with API SN and JASO MA/MA2 performance.
Primary Segment Motorcycle engine oils for street bikes, sport bikes and other high-performance 4-stroke motorcycles operating in varied traffic and climatic conditions.
Usage Type Daily commuting, city riding, weekend tours and spirited road use where riders demand strong engine protection, cleanliness and smooth power delivery.
Operating Conditions All-season operation including cold starts, stop-and-go traffic, high engine speeds and elevated temperatures in air-cooled motorcycle engines.
Key Function Protect against piston seizure and ring sticking, minimise deposits, reduce smoke and support smooth gear changes and stable wet clutch performance.
Specification Requirement Motorcycles and transmissions specifying engine oils meeting API SN and JASO MA/MA2, and systems where SF, SG, SH or SL oils are prescribed.
Target Users Motorcycle owners, workshops and fleets looking for full synthetic 5W-40 engine oil for high-performance 4-stroke bikes with shared engine/gearbox oil.
Available Packaging 1L, 205L and larger bulk packaging options to support retail shelves, service workshops and bulk distribution needs (packaging can be adjusted per market).

 

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.

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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.

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