Available Pack
Petrozad Optimum Ultra API SN – SAE 15W-50
Features & Benefits
- Good engine cleanliness, due to improved detergency and
- Good wear protection and improved resistance to
- Superior protection against viscosity and thermal
- Superior sludge protection for greater engine
- Easier cold starting compared to mono-grade engine
Application
Petrozad Optimum Ultra 15W-50 SN is suitable for use in following:
4-stroke gasoline passenger cars engines (multi-valve, turbo, etc.); 4-stroke diesel engines, with or without turbo. High compatibility with biodiesel, based on extensive field trials.
- Automotive gasoline and diesel
- Passenger cars, SUVs, light trucks and
- Pleasure boats, motorcycles without wet clutch,
- Moderate duty LPG
Naturally aspirated or turbo-charged indirect injection diesel engines
Typical Characteristics
| PARAMETERS | Test Method | Units | Ultra 15W-50 |
| Density @ 15 0C | ASTM D 4052 | gm/cc | 0.875 |
| Viscosity @ 100 0C | ASTM D 445 | cSt | 18.90 |
| Viscosity @ 40 0C | ASTM D 445 | cSt | 145.90 |
| Viscosity Index | ASTM D 2270 | – | 147 |
| Pour Point | ASTM D 97 | °C | -33 |
| Flash Point (COC) | ASTM D 92 | °C | 230 |
| Total Base Number | ASTM D 2896 | mg KOH/g | 8.2 |
| Phosphorous | ASTM D 4951 | % wt | 0.098 |
| CCS Viscosity | ASTM D 5293 | cP | 5610 @ -20°C |





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