ZUSS ZD 20W-50 API CI-4 / SL Premium Mineral Diesel Engine Oil
Overview
ZUSS ZD 20W-50 API CI-4 / SL Premium Mineral Diesel Engine Oil is a high-viscosity heavy-duty diesel engine oil formulated for severe operating conditions. It provides strong oil film strength, excellent wear protection, and thermal stability, making it especially suitable for high-mileage engines and hot climate operation.
Key Performance Features
- ✅ High Film Strength: Excellent protection under heavy load.
- ✅ Wear & Corrosion Protection: Extends engine service life.
- ✅ Oil Consumption Control: Helps reduce oil burn in worn engines.
- ✅ Thermal Stability: Resists thinning at high temperatures.
- ✅ Hot Climate Suitability: Ideal for severe duty operation.
Applications
- Heavy-duty diesel engines (on-highway & off-highway).
- Trucks, buses, construction and agricultural equipment.
- Older or high-mileage diesel engines.
- Engines operating under high temperature, heavy load, or long idling.
Typical Properties
| SAE Viscosity Grade | 20W-50 |
|---|---|
| Density @ 15°C | 0.88 – 0.90 kg/L |
| Viscosity @ 40°C | 160 – 200 cSt |
| Viscosity @ 100°C | 18.0 – 21.5 cSt |
| Viscosity Index | ≥120 |
| Flash Point | ≥220°C |
| Pour Point | ≤-15°C |
| Total Base Number (TBN) | 8 – 11 mg KOH/g |
API
API CI-4 / SL
Storage & Handling
Store in a cool, dry place away from sunlight and heat sources.
Health & Safety
Refer to the Safety Data Sheet (SDS) for proper handling and disposal.
Recommended for severe duty & high-mileage diesel engines