Mobil Vacuoline 546
ISO VG 460 anti-wear, r&o gear oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 453 cSt | ASTM D445 |
| KV100 | 29.4 cSt | ASTM D445 |
| Viscosity index | 95 | ASTM D2270 |
| Pour point | -12 °C | ASTM D97 |
| Flash point | 286 °C | ASTM D92 |
| Density at 15 °C | 0.9 g/cm³ | typical |
Grade checks
- KV40 is inside ISO VG 460 (414–506 cSt).
- Computed viscosity index is 92 from the stored KV40 and KV100 (ASTM D2270). The listed index is 95, 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: Gear
- Attribute: Anti-Wear, R&O
- Synthetic: Conventional
- AGMA class: RO
- FZG fail stage: 12
- Copper: 1A
- Note: Bearings, gears
Equivalents
| Oil | Score | Why |
|---|---|---|
| Shell Omala F 460 | 88 | same ISO 460, VI 97 vs 95, additive aw/ro, conventional, pour -9 vs -12, FZG 12 |
| Shell Omala S2 G 460 | 83 | same ISO 460, VI 97 vs 95, additive aw/ro, conventional, pour -12 vs -12, buyable now |
| Castrol Molub-Alloy GM 140/460 | 78 | same ISO 460, VI 95 vs 95, additive ro, conventional, pour -15 vs -12, FZG 12 |
| Shell Omala S2 GX 460 | 78 | same ISO 460, VI 97 vs 95, additive aw/ro, conventional, pour -12 vs -12 |
| Chevron Meropa 460 | 65 | same ISO 460, VI 98 vs 95, additive aw, conventional, flash within 15 °C, buyable now |
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
- Product data sheet
- Safety data sheet
- Specs last read from the data sheet on 2026-09-09.
Related: Mobil, Vacuoline 500 Series, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Mobil Vacuoline 546 an ISO VG 460 oil?
Yes. The catalogue lists it as ISO VG 460, which is a kinematic viscosity of 460 cSt at 40 °C, plus or minus 10 percent (414 to 506 cSt). Confirm the current data sheet before you fill a machine.
What is a Mobil Vacuoline 546 equivalent?
Published oils in the same application and grade include Shell Omala F 460, Shell Omala S2 G 460, Castrol Molub-Alloy GM 140/460. 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 Vacuoline 546 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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