Engine oils are generally formulated oils. They consist of mineral, semi- or fully synthetic base oil (base stocks) plus a varying number and amount of additives. The quality of an engine oil depends on the base stock and its properties as well as on the additives.
The main requirements for an engine oil are defined temperature-viscosity properties, protection against wear and corrosion, keeping the engine clean, holding particles like soot or abrasives in suspension, yield strength under compression and many more. Temperature impacts the flow properties of engine oil. Engine oil is available in different SAE grades to suit the climate where it is used and the purpose of the user.
| Temp. [°C] | Dyn. Viscosity [mPa.s] | Kin. Viscosity [mm²/s] | Density [g/cm³] |
|---|---|---|---|
| 0 | 1328.0 | 1489.4 | 0.8916 |
| 10 | 582.95 | 658.60 | 0.8851 |
| 20 | 287.23 | 326.87 | 0.8787 |
| 30 | 155.31 | 178.01 | 0.8725 |
| 40 | 91.057 | 105.10 | 0.8663 |
| 50 | 57.172 | 66.464 | 0.8602 |
| 60 | 38.071 | 44.585 | 0.8539 |
| 70 | 26.576 | 31.350 | 0.8477 |
| 80 | 19.358 | 23.006 | 0.8414 |
| 90 | 14.588 | 17.467 | 0.8352 |
| 100 | 11.316 | 13.648 | 0.8291 |
| Temp. [°C] | Dyn. Viscosity [mPa.s] | Kin. Viscosity [mm²/s] | Density [g/cm³] |
|---|---|---|---|
| 0 | 735.42 | 839.76 | 0.8758 |
| 10 | 385.53 | 443.53 | 0.8692 |
| 20 | 208.89 | 242.07 | 0.8629 |
| 30 | 121.63 | 141.98 | 0.8567 |
| 40 | 79.330 | 93.274 | 0.8505 |
| 50 | 53.904 | 63.847 | 0.8443 |
| 60 | 37.147 | 44.327 | 0.8380 |
| 70 | 26.502 | 31.865 | 0.8317 |
| 80 | 19.690 | 23.265 | 0.8239 |
| 90 | 15.093 | 18.424 | 0.8192 |
| 100 | 11.877 | 14.607 | 0.8131 |
| Temp. [°C] | Dyn. Viscosity [mPa.s] | Kin. Viscosity [mm²/s] | Density [g/cm³] |
|---|---|---|---|
| 0 | 1453.8 | 1684.4 | 0.8631 |
| 10 | 712.34 | 831.44 | 0.8568 |
| 20 | 381.08 | 448.10 | 0.8504 |
| 30 | 220.06 | 260.69 | 0.8442 |
| 40 | 135.52 | 161.73 | 0.8380 |
| 50 | 88.554 | 106.47 | 0.8318 |
| 60 | 60.601 | 73.406 | 0.8256 |
| 70 | 43.230 | 52.766 | 0.8193 |
| 80 | 31.946 | 39.292 | 0.8130 |
| 90 | 24.310 | 30.129 | 0.8069 |
| 100 | 18.992 | 23.717 | 0.8008 |
| Temp. [°C] | Dyn. Viscosity [mPa.s] | Kin. Viscosity [mm²/s] | Density [g/cm³] |
|---|---|---|---|
| 0 | 753.52 | 868.78 | 0.8674 |
| 10 | 378.65 | 439.85 | 0.8609 |
| 20 | 206.89 | 242.10 | 0.8545 |
| 30 | 121.90 | 143.70 | 0.8483 |
| 40 | 76.551 | 90.903 | 0.8421 |
| 50 | 50.861 | 60.849 | 0.8358 |
| 60 | 35.409 | 42.685 | 0.8295 |
| 70 | 25.631 | 31.135 | 0.8232 |
| 80 | 19.181 | 23.478 | 0.8170 |
| 90 | 14.742 | 18.185 | 0.8106 |
| 100 | 11.619 | 14.443 | 0.8045 |
| Temp. [°C] | Dyn. Viscosity [mPa.s] | Kin. Viscosity [mm²/s] | Density [g/cm³] |
|---|---|---|---|
| 0 | 474.65 | 550.23 | 0.8626 |
| 10 | 249.94 | 291.93 | 0.8561 |
| 20 | 142.17 | 167.29 | 0.8498 |
| 30 | 86.600 | 102.66 | 0.8435 |
| 40 | 55.926 | 66.803 | 0.8372 |
| 50 | 38.008 | 45.748 | 0.8308 |
| 60 | 27.008 | 32.754 | 0.8246 |
| 70 | 19.844 | 24.258 | 0.8181 |
| 80 | 15.064 | 18.561 | 0.8116 |
| 90 | 11.734 | 14.572 | 0.8053 |
| 100 | 9.3466 | 11.698 | 0.7990 |
| Temp. [°C] | Dyn. Viscosity [mPa.s] | Kin. Viscosity [mm²/s] | Density [g/cm³] |
|---|---|---|---|
| 0 | 1124.10 | 1257.25 | 0.8941 |
| 10 | 491.10 | 553.20 | 0.8878 |
| 20 | 239.39 | 271.56 | 0.8815 |
| 30 | 128.42 | 146.70 | 0.8754 |
| 40 | 74.55 | 85.76 | 0.8693 |
| 50 | 46.43 | 53.80 | 0.8630 |
| 60 | 30.58 | 35.69 | 0.8569 |
| 70 | 21.17 | 24.89 | 0.8506 |
| 80 | 15.28 | 18.10 | 0.8444 |
| 90 | 11.42 | 13.62 | 0.8383 |
| 100 | 8.80 | 10.58 | 0.8322 |
Measured with SVM™.
| Reference | Measurement with SVM™ |
|---|---|
| Kin. vis. | yes |
| Dyn. vis. | yes |
| Density | yes |
| Multiple temperatures | yes |
| Related | Lubricant, lube, engine oil, motor oil, viscosity, SAE |
