| Test Item | Syn 2 | Syn 4 | Syn 6 | Syn 8 | Test Method |
| Appearance | Clear | Clear | Clear | Clear | visual |
| Specific Gravity @20℃, g/cm3 | 0.78-0.83 | 0.79-0.84 | 0.8-0.85 | 0.81-0.86 | GB/T 1884 |
| Kinematic Viscosity @40℃，mm2/S | 8-12 | 13-18 | 29-36 | 38-50 | GB/T 265 |
| Kinematic Viscosity (100℃) mm2/S | 2.5-3 | 3.5-4.5 | 6-7 | 7.5-8.5 | GB/T 265 |
| Viscosity Index | ＞120 | ＞130 | ＞140 | ＞140 | GB/T 1995 |
| Flash Point (open-cup) | ＞180 | ＞210 | ＞235 | ＞240 | GB/T 3536 |
| Pour Point ℃ | ＜-35 | ＜-30 | ＜-30 | ＜-25 | GB/T 3536 |
| Evaporation Loss （250,1h）,% | Report | ＜12 | ＜5 | ＜3.5 | SH/T 0059 |
| Total Sulfur mg/kg | ＜2 | ＜2 | ＜2 | ＜2 | SH/T 0689 |
Engine oil, compressor oil, variable resistance tank oil, gear oil, grease.
