Mobil Heavy
ISO VG 100 anti-wear, r&o hydraulic oil
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|---|---|---|---|
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 95.1 cSt | ASTM D445 |
| KV100 | 10.9 cSt | ASTM D445 |
| Viscosity index | 92 | ASTM D2270 |
| Pour point | -15 °C | ASTM D97 |
| Flash point | 237 °C | ASTM D92 |
| Density at 15 °C | — | typical |
Grade checks
- KV40 is inside ISO VG 100 (90–110 cSt).
- Computed viscosity index is 98 from the stored KV40 and KV100 (ASTM D2270). The listed index is 92, more than 2 points away.
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: Hydraulic
- Attribute: Anti-Wear, R&O
- Synthetic: Conventional
- Copper: 1B
- Note: Hydraulic oil
Equivalents
| Oil | Score | Why |
|---|---|---|
| Shell Tellus S2 M 100 | 71 | same ISO 100, VI 96 vs 92, additive aw/ro, conventional, flash within 15 °C |
| Castrol Hyspin AWS 100 | 70 | same ISO 100, VI 95 vs 92, additive aw, conventional, pour -18 vs -15, flash within 15 °C |
| Shell Tellus S2 MX 100 | 62 | same ISO 100, VI 105 vs 92, additive aw/ro, conventional, flash within 15 °C |
| Chevron Rando HD 100 | 59 | same ISO 100, VI 106 vs 92, additive aw, conventional, pour -15 vs -15, flash within 15 °C |
| Shell Tellus S3 M 100 | 55 | same ISO 100, VI 100 vs 92, additive aw, conventional, flash within 15 °C |
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, DTE Named, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Mobil Heavy an ISO VG 100 oil?
Yes. The catalogue lists it as ISO VG 100, which is a kinematic viscosity of 100 cSt at 40 °C, plus or minus 10 percent (90 to 110 cSt). Confirm the current data sheet before you fill a machine.
What is a Mobil Heavy equivalent?
Published oils in the same application and grade include Shell Tellus S2 M 100, Castrol Hyspin AWS 100, Shell Tellus S2 MX 100. The match is from typical data-sheet values, not from an OEM approval. It is not an exact equivalent. Confirm the substitute with the machine builder.
Can Mobil Heavy 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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