High Viscosity Gasoline Engine Oil SL 15W-40 / 20W-50
产品说明
Specifications and Approvals
- • API SL
Performance Benefits
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• Excellent High-Temperature StabilityFormulated to maintain stable viscosity under extreme heat, this high viscosity engine oil ensures reliable lubrication in hot climates and heavy-duty operating conditions, preventing oil breakdown and engine damage.
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• Enhanced Wear ProtectionAdvanced anti-wear additives reduce friction and metal-to-metal contact, providing strong protection for engines under heavy load, making it ideal for high mileage and older gasoline engines.
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• Improved Oil Consumption ControlThe thicker oil film helps reduce oil consumption and leakage, especially in worn engine components, improving overall engine efficiency and longevity.
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• Strong Deposit ControlEffectively prevents sludge and carbon buildup, keeping engine parts clean and ensuring stable performance over extended operating periods.
Applications
Applications of Gasoline Engine Oil SL 15W-40 / 20W-50
Passenger cars with high mileage
Vehicles operating in hot climates
Light-duty commercial vehicles
Engines under heavy load conditions
Older gasoline engines requiring API SL
15W-40 vs 20W-50 Engine Oil – Which One Should You Choose?
15W-40 engine oil offers better cold-start performance and is suitable for moderate climates, while 20W-50 provides thicker oil film and stronger protection in high-temperature and high-load conditions.
For engines with high mileage or operating in hot environments, 20W-50 is often the preferred choice.
Frequently Asked Questions (FAQ)
What is 20W-50 engine oil used for?
20W-50 engine oil is commonly used in high-temperature environments and older engines with higher mileage.
Is 15W-40 good for gasoline engines?
Yes, 15W-40 can be used in gasoline engines that require API SL specification, especially under moderate to heavy operating conditions.
Which is better, 15W-40 or 20W-50?
20W-50 offers better protection in hot climates, while 15W-40 performs better during cold starts.
Can I use 20W-50 instead of 10W-40?
It depends on the engine requirements. Thicker oil may reduce flow in cold conditions, so always follow manufacturer recommendations.
Is high viscosity oil better for old engines?
Yes, high viscosity oil helps reduce leakage and improves sealing in worn engine components.
Why Choose YUANGEN as Your Engine Oil Supplier?
30+ years lubricant manufacturing experience
OEM & private label engine oil support
Bulk supply (1L / 4L / 18L / 200L)
Strict quality control system
Exported to 90+ countries
👉 Get a free quote within 12 hours
Related Products
Typical Test Data
YUANGEN X6 PRIME SL 15W-40
Test Item | Result | Method |
Density (20℃), g/cm³ | 0.869 | ASTM D4052 |
Kinematic Viscosity (100℃), mm²/s | 15.1 | ASTM D445 |
Kinematic Viscosity (40℃), mm²/s | 117.8 | ASTM D445 |
Viscosity Index | 133 | ASTM D2270 |
Pour Point, ℃ | -36 | ASTM D97 |
Flash Point (COC), ℃ | 232 | ASTM D92 |
Viscosity, Crank (-20℃), mPa | 5800 | ASTM D5293 |
YUANGEN X6 PRIME SL 20W-50
Test Item | Result | Method |
Density (20℃), g/cm³ | 0.877 | ASTM D4052 |
Kinematic Viscosity (100℃), mm²/s | 18.8 | ASTM D445 |
Kinematic Viscosity (40℃), mm²/s | 167.5 | ASTM D445 |
Viscosity Index | 127 | ASTM D2270 |
Pour Point, ℃ | -32 | ASTM D97 |
Flash Point (COC), ℃ | 240 | ASTM D92 |
Viscosity, Crank (-15℃), mPa | 7100 | ASTM D5293 |
Health, Safety & Environment
Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and wate
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.