Chevron Regal R&O 46
ISO VG 46 anti-wear, r&o turbine oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 43.7 cSt | ASTM D445 |
| KV100 | 6.5 cSt | ASTM D445 |
| Viscosity index | 98 | ASTM D2270 |
| Pour point | -27 °C | ASTM D97 |
| Flash point | 224 °C | ASTM D92 |
| Density at 15 °C | 0.867 g/cm³ | typical |
Grade checks
- KV40 is inside ISO VG 46 (41.4–50.6 cSt).
- Computed viscosity index is 98, within 2 points of the listed 98.
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: Turbine
- Attribute: Anti-Wear, R&O
- Synthetic: Conventional
- Copper: Unlisted
- Note: Steam and hydroelectric turbines
Equivalents
| Oil | Score | Why |
|---|---|---|
| Shell Turbo Oil CC 46 | 56 | same ISO 46, VI 105 vs 98, additive ro, conventional, flash within 15 °C |
| Mobil DTE 846 | 47 | same ISO 46, VI 106 vs 98, conventional, pour -30 vs -27 |
| Shell Turbo Oil T 46 | 45 | same ISO 46, additive aw/ro, conventional, flash within 15 °C |
| Shell Turbo S4 GX 46 | 38 | same ISO 46, VI 139 vs 98, additive aw, conventional, pour -27 vs -27 |
| Mobil DTE 746 | 15 | same ISO 46, VI 113 vs 98 |
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: Chevron, Regal R&O, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Chevron Regal R&O 46 an ISO VG 46 oil?
Yes. The catalogue lists it as ISO VG 46, which is a kinematic viscosity of 46 cSt at 40 °C, plus or minus 10 percent (41.4 to 50.6 cSt). Confirm the current data sheet before you fill a machine.
What is a Chevron Regal R&O 46 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 Chevron Regal R&O 46 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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