Synthetic Heavy-Duty Diesel Engine Oil CF-4 SAE 10W30 10W40 15W40 20W50
1. Product Name: Fully Synthetic Heavy-duty Diesel Engine Oil
2. Single package size: 10X20X29 cm
3. Single gross weight: 3.80kg
4. Application: Commercial trucks, buses, construction machinery and diesel fleets
5. Base Oil: Fully Synthetic
6. Fuel Type: Diesel
7. SAE Grade: 10W30, 10W40, 15W40, 20W50
8. Performance Standard: API CF-4
9. Packaging: 4L / 18L
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
OUNUODE Synthetic Heavy-Duty Diesel Engine Oil is developed for diesel engines operating under medium-load and demanding working conditions.
The oil uses synthetic base oil technology combined with advanced additive components to provide balanced lubrication performance, including wear protection, oxidation resistance, corrosion protection and deposit control.
The formulation is designed to maintain stable lubrication performance during high-temperature operation, frequent engine starts and long working cycles, helping reduce friction between engine components and maintain engine cleanliness.
This diesel engine oil meets API CF-4 performance requirements and is suitable for various commercial vehicles and engineering machinery applications.
SAE Viscosity Grade Selection Guide
| Property | SAE 10W-30 | SAE 10W-40 | SAE 15W-40 | SAE 20W-50 |
|---|---|---|---|---|
| Kinematic Viscosity @100℃ | Approx. 10-12 mm²/s | Approx. 14-16 mm²/s | Approx. 14-16 mm²/s | Approx. 18-21 mm²/s |
| High Temperature High Shear Viscosity | ≥3.3 mPa·s range | ≥4.0 mPa·s range | ≥4.0 mPa·s range | ≥4.8 mPa·s range |
| Pour Point | Approx. -30℃ range | Approx. -35℃ range | Approx. -30℃ range | Approx. -25℃ range |
Technical Specifications
| Reference Item | Specification |
|---|---|
| Product Type | Heavy-Duty Diesel Engine Oil |
| API Performance | CF-4 |
| SAE Grades | 10W30 / 10W40 / 15W40 / 20W50 |
| Standard Reference | GB11122-2006 |
Material & Manufacturing Quality
Advanced Base Oil and Additive Formulation
The performance of diesel engine oil depends on the combination of base oil quality and additive technology.
OUNUODE engine oil adopts:
Synthetic Base Oil Technology
Better viscosity stability during temperature changes
Improved lubrication performance under demanding conditions
Reduced oil performance degradation during long operation periods
Anti-Wear Additive System
Helps create a protective lubrication film between moving engine parts, reducing metal-to-metal contact under load conditions.
Oxidation Resistance Additives
Help slow oil oxidation caused by high operating temperature, maintaining oil performance stability.
Detergent and Dispersant Additives
Help control sludge and carbon deposit formation, keeping engine components cleaner.
Anti-Foam Components
Reduce foam formation during oil circulation, supporting stable lubrication.
Engine Oil Product Catalog & Test Report
Key Features
1. Enhanced Anti-Wear Protection
The additive system helps strengthen the lubrication film and reduce wear during heavy-load operation.
2. Excellent Oxidation Resistance
Maintains oil stability under high-temperature operating conditions.
3. Improved Engine Cleanliness
Detergent and dispersant technology helps reduce sludge and carbon deposit accumulation.
4. Stable Viscosity Performance
Provides reliable lubrication across different temperature conditions.
5. Wide Application Range
Suitable for commercial vehicles, transportation fleets and engineering machinery equipment.
Frequently Asked Questions (FAQ)
Q: How do I choose between SAE 10W30, 10W40, 15W40 and 20W50?
A: The correct viscosity depends on : Engine manufacturer's recommendation ,Ambient temperature ,Engine condition ,Working load.
For fleet purchasing, buyers normally select based on existing maintenance specifications.
Q: Can API CF-4 oil replace other API grades?
A: Not always. API categories represent different performance levels. Buyers should check the engine manufacturer's required specification before replacement.
Q: Why does diesel engine oil become darker after use?
A: Diesel engine oil normally becomes darker because it absorbs soot and combustion residues during operation.
Color change alone does not indicate oil failure. Oil condition should be evaluated according to service interval and operating conditions.
Q: What is the difference between 15W40 and 20W50?
A: The main difference is viscosity characteristics.
15W40 is widely used in many heavy-duty diesel applications.
20W50 provides higher viscosity performance at operating temperature and is commonly considered for certain high-temperature or older engine applications.
Selection should follow equipment requirements.
Q: Can Onode provide OEM/private label service?
A: Yes. Onode supports: OEM packaging ,Customized supply solutions ,Bulk orders
Why Choose OUNUODE?
Professional Manufacturing
19+ years of experience in supply chain & manufacturing.
8000+ spare parts for European & Chinese trucks, plus engineering machinery.
Global Supply & Customization
Supported by 3 family-owned factories and 50+ cooperated factories.
OEM/ODM customization, flexible sourcing, and professional after-sales support.
19+
Years Experience
8000+
Spare Parts
12+
Production Lines
100,000+㎡
Facility Area
Our address
Phone Number
Laifeng@onodetruckparts.com
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