Premium SJ Grade Gasoline Engine Oil from China Suppliers - Factory-Direct Superior Protection and Performance
Key Features and Benefits
Reduces wear and friction: Specially formulated anti-wear additives minimize friction between engine components, protecting pistons, camshafts and bearings.
High Temperature Stability: Maintains viscosity at extreme temperatures, preventing oil breakdown and ensuring continuous lubrication.
Prevents sludge and deposits: Advanced detergents and dispersants keep engines clean by preventing the formation of harmful sludge and carbon deposits.
Corrosion Resistance: Protects engine components from rust and corrosion, even in wet or harsh conditions.
Low friction formula: Reduces internal engine drag, helping to improve fuel economy and reduce emissions.
Excellent cold-start performance: Smooth flow at low temperatures ensures fast engine starts in winter.
Stable high-temperature performance: maintains protective lubrication in hot weather or under heavy loads.
Meets API SJ standards: Suitable for a wide range of gasoline engines, including older engines requiring SH or SG oils.
Seal-friendly formulation: Compatible with engine gaskets and seals to prevent leakage.
Technical Specifications
| API Certification | SJ |
| SAE Viscosity Grade | 10W-30, 10W-40 (other options available) |
| Base Oil Type | Highly refined mineral/synthetic oils |
| Key Additives | Antiwear (ZDDP), detergents, antioxidants, defoamers |
| Operating temperature range | -25°C to 40°C (-13°F to 104°F) |
Recommended Uses
- Vehicle Types: Passenger cars, SUVs, light trucks and vans with gasoline engines.
- Engine Compatibility: For naturally aspirated and turbocharged engines (see manufacturer's recommendations).
- Ideal for: daily driving, long trips and moderate towing.
Why choose our SJ Engine Oil?
- Extended engine life - reduces wear and ensures long-lasting performance.
- Smooth running - minimizes engine noise and vibration.
- Cost-effective maintenance - Keeps engines clean and reduces repair costs.
- Trusted quality - rigorously tested to meet industry standards.
Maintenance Tips
- OIL CHANGE INTERVALS: Every 5,000-6,000 km (or as recommended by the vehicle manufacturer).
- REGULAR CHECKS: Monitor oil level monthly and top up if necessary.
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Frequently Asked Questions
What does the API SJ specification mean?
API SJ is a service rating established by the American Petroleum Institute. It indicates that the oil meets performance standards designed for gasoline engines manufactured in 1996 and later, ensuring essential wear protection and high-temperature stability.
What viscosity grades are available for this engine oil?
Our SJ Engine Oil is standardly available in SAE 10W-30 and 10W-40 viscosity grades. Other customized viscosity options can be provided upon request to match your specific vehicle requirements.
How often should I change this SJ Engine Oil?
For optimal performance and engine protection, we recommend changing the oil every 5,000 to 6,000 kilometers, or in accordance with the specific recommendations outline in your vehicle manufacturer's manual.
Is this engine oil compatible with turbocharged engines?
Yes, our SJ Engine Oil is formulated to be compatible with both naturally aspirated and turbocharged gasoline engines, offering reliable thermal stability under various load conditions.
Can I use this oil in older vehicle models?
Absolutely. The API SJ standard is backward compatible, meaning it is fully suitable for older engines that specify SH, SG, or earlier oil ratings. Its seal-friendly formula also helps prevent leaks in older engine gaskets.
Does this oil perform well during extreme winter conditions?
Yes, the multi-grade formulation ensures excellent low-temperature fluidity, allowing for smooth oil flow and fast, reliable engine starts during cold winter conditions.