Research Article
Correlation Study of Physicochemical, Rheological, and Tribological Parameters of Engine Oils
Table 3
Physicochemical properties of the lubricants.
| Sl. number | Characteristics | Lubricant name | | | | | |
| | Density at 15°C (g cm−3) | 0.8711 | 0.8910 | 0.8695 | 0.8655 | 0.8526 | | Kinematic viscosity (mm2/s) @ 40°C | 123.06 | 166.71 | 154.93 | 83.68 | 79.82 | | Kinematic viscosity (mm2/s) @ 100°C | 14.17 | 17.75 | 17.93 | 13.28 | 13.05 | | Viscosity index (VI) | 115 | 117 | 118 | 162 | 166 | | TAN (mg KOH/g) | 0.44 | 1.93 | 0.93 | 2.13 | 2.00 | | TBN (mg KOH/g) | 11.16 | 11.09 | 9.65 | 14.41 | 14.25 | | Sulphated ash %wt | 1.06 | 0.77 | 0.93 | 0.80 | 1.10 |
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