SN 500 base oil is defined as a light base oil at the upper end of the Group I base oil specification and is used primarily in the production of lubricants and for the formulation and blending of lubricants for commercial and passenger vehicles as well as industrial applications. SN 500 base oil serves as a base for several industrial lubricants:
- Engine oils
- Transmission fluids
- Gear oils
- Metalworking fluids
- Greases
- Hydraulic oils
- Transformer oils
The advantages of SN500 base oil include:
- Stable properties during operation
- Light color
- Good oxidation and thermal stability
- Low volatility
- Excellent viscosity stability
- Good viscosity index
- High flash point
- Low TAN
- Low sulfur content
| Specification | SN150 | SN500 | GIII 4cST | GIII 6cST | Test Method ASTM |
| Kinematic Viscosity @ 100°C | 5 cSt | 11 cSt | 4.2-4.4 cSt | 5.8-6.2 cSt | D-445 |
| Viscosity index (VI) | 90 | 90 | 127 | 130 | D-2270 |
| Flash Point | 205°C | 235°C | 220°C | 220°C | D-92 |
| Pour Point | -6°C | -6°C | -18°C | -15°C | D-97 |
| Density @ 15°C | 0.870 kg/m³ | 0.885 kg/m³ | 0.836 kg/m³ | 0.841kg/m³ | D-1298 |
| Sulphur Content | 0.5 Wt.% | 0.4 Wt.% | 10 mg/Kg | 10 mg/Kg | D-2622 |
| Color | 2 | 2 | +26(ASTM D156) | +25(ASTM D156) | D-1500 |
| NOAK | 10 Wt.% | 6 Wt.% | 12 Wt.% | 7 Wt.% | D-5800 |
| Carbon Residue Content | 0.05 Wt.% | 0.1 Wt.% | 0.01 Wt.% | 0.01 Wt.% | D-189 |