Mobil Vacuoline 128
ISO VG 150 other oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 150 cSt | ASTM D445 |
| KV100 | 14.8 cSt | ASTM D445 |
| Viscosity index | 96 | ASTM D2270 |
| Pour point | -9 °C | ASTM D97 |
| Flash point | 280 °C | ASTM D92 |
| Density at 15 °C | 0.89 g/cm³ | typical |
Grade checks
- KV40 is inside ISO VG 150 (135–165 cSt).
- Computed viscosity index is 98, within 2 points of the listed 96.
Viscosity and temperature
ASTM D341 (Walther) fitted to the published KV40 and KV100. It is an interpolation between those two points, and it is not meaningful below the pour point. Move the control to read a temperature.
Classification
- Category: Other
- Synthetic: Conventional
- Copper: 1B
- Note: Rolling mill
Equivalents
| Oil | Score | Why |
|---|---|---|
| Chevron Clarity Saw Guide Oil 150 | 31 | same ISO 150, VI 100 vs 96, flash within 15 °C |
| Castrol Tribol CH 1430 | 22 | KV40 within 10%, VI 124 vs 96, conventional, flash within 15 °C |
| Chevron Red Chain Bar Oil 150 | 15 | same ISO 150, conventional |
Scores use published typical data. This is not an exact equivalent, and it is not an OEM approval. Confirm the substitute with the machine builder.
Documents
Related: Mobil, Vacuoline 100 Series, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Mobil Vacuoline 128 an ISO VG 150 oil?
Yes. The catalogue lists it as ISO VG 150, which is a kinematic viscosity of 150 cSt at 40 °C, plus or minus 10 percent (135 to 165 cSt). Confirm the current data sheet before you fill a machine.
What is a Mobil Vacuoline 128 equivalent?
No other brand in this catalogue clears the equivalents bar for this oil yet (same application, same grade, compatible base oil, and a score of 60 or more). That is not proof that nothing else works. Check the machine manual.
Can Mobil Vacuoline 128 be mixed with another oil?
Mixing two oils that share a base family is sometimes done and sometimes a mistake. Do not mix this oil with a PAG. For any other mix, follow the maker's change-over guidance and the machine manual.
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