Premium SJ Grade Gasoline Engine Oil from China - Top Suppliers & Factory for Superior Protection and Performance
Key Features and Benefits
1. Advanced engine protection
- 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.
2. Cleaner engine performance
- 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.
3. Improved Fuel Efficiency
- Low friction formula: Reduces internal engine drag, helping to improve fuel economy and reduce emissions.
4. Four-season reliability
- 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.
5. Broad compatibility
- 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.
Frequently Asked Questions
What is API SJ engine oil?
API SJ is a specification introduced by the American Petroleum Institute for gasoline engines. It is designed to provide excellent wear protection, high-temperature stability, and control over sludge and carbon deposits.
Can I use SJ engine oil in modern vehicles?
API SJ is typically formulated for older passenger cars and light trucks (pre-2001 models). For modern vehicles, you should consult your owner's manual to ensure it meets the recommended oil specifications (such as API SN or SP).
What viscosity grades are available for SJ engine oil?
Our API SJ engine oil is commonly available in SAE 10W-30 and 10W-40 viscosity grades. Other viscosity options can be provided based on specific requirements.
How often should I change API SJ engine oil?
It is recommended to change the engine oil every 5,000 to 6,000 km, or in accordance with the specific maintenance intervals outlined by your vehicle manufacturer.
Is this engine oil compatible with synthetic blends?
Yes, our SJ engine oil is formulated using highly refined mineral and synthetic base oils, making it compatible with most standard engine gaskets and seals to prevent leaks.