Castrol Tribol HM 68
ISO VG 68 anti-wear hydraulic oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 68 cSt | ASTM D445 |
| KV100 | 9.2 cSt | ASTM D445 |
| Viscosity index | 230 | ASTM D2270 |
| Pour point | -24 °C | ASTM D97 |
| Flash point | — | ASTM D92 |
| Density at 15 °C | — | typical |
Grade checks
- KV40 is inside ISO VG 68 (61.2–74.8 cSt).
- Computed viscosity index is 112 from the stored KV40 and KV100 (ASTM D2270). The listed index is 230, 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
- Synthetic: Conventional
- Copper: Unlisted
- Note: Circulating Oil
Equivalents
| Oil | Score | Why |
|---|---|---|
| Mobil DTE 26 | 55 | same ISO 68, VI 98 vs 230, additive aw, conventional, pour -21 vs -24, buyable now |
| Chevron Hydraulic Oil AW 68 | 50 | same ISO 68, VI 99 vs 230, additive aw, conventional, pour -22 vs -24 |
| Mobil Nuto H 68 | 50 | same ISO 68, VI 98 vs 230, additive aw, conventional, pour -18 vs -24 |
| Shell Tellus S2 M 68 | 50 | same ISO 68, VI 97 vs 230, additive aw, conventional, pour -24 vs -24 |
| Shell Tellus S2 MX 68 | 50 | same ISO 68, VI 105 vs 230, additive aw, conventional, pour -24 vs -24 |
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: Castrol, Tribol H 943M, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Castrol Tribol HM 68 an ISO VG 68 oil?
Yes. The catalogue lists it as ISO VG 68, which is a kinematic viscosity of 68 cSt at 40 °C, plus or minus 10 percent (61.2 to 74.8 cSt). Confirm the current data sheet before you fill a machine.
What is a Castrol Tribol HM 68 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 Castrol Tribol HM 68 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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