Castrol Optigear EP 460
ISO VG 460 gear oil
Buy
No retailer listing is on file for this oil. Email us and we will point you at a distributor. A quote form, and Zoro, Walmart, eBay, Grainger, MSC and Global Industrial, wait on programs that are not connected yet.
As an Amazon Associate, Evolvent Design earns from qualifying purchases. McMaster-Carr links are not affiliate links.
Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 450 cSt | ASTM D445 |
| KV100 | 30 cSt | ASTM D445 |
| Viscosity index | 94 | ASTM D2270 |
| Pour point | -9 °C | ASTM D97 |
| Flash point | 240 °C | ASTM D92 |
| Density at 15 °C | 0.908 g/cm³ | typical |
Grade checks
- KV40 is inside ISO VG 460 (414–506 cSt).
- Computed viscosity index is 95, within 2 points of the listed 94.
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
- Synthetic: Synthetic
- AGMA class: AS
- FZG fail stage: >=14
- Copper: 1
- Note: Extreme pressure gear lubricant, mineral oil
Equivalents
| Oil | Score | Why |
|---|---|---|
| Mobil 600 XP 460 | 58 | same ISO 460, VI 96 vs 94, pour -15 vs -9, flash within 15 °C, AGMA AS, buyable now |
| Mobil EP 460 | 53 | same ISO 460, VI 96 vs 94, pour -15 vs -9, flash within 15 °C, AGMA AS |
| Shell Omala S2 G 460 | 52 | same ISO 460, VI 97 vs 94, pour -12 vs -9, AGMA AS, buyable now |
| Shell Omala S2 GX 460 | 52 | same ISO 460, VI 97 vs 94, pour -12 vs -9, flash within 15 °C, AGMA AS |
| Shell Omala F 460 | 47 | same ISO 460, VI 97 vs 94, pour -9 vs -9, AGMA AS |
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: Castrol, Optigear EP, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Castrol Optigear EP 460 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 Castrol Optigear EP 460 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 Optigear EP 460 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.
Report a data error
The report is stored for review. It does not change the page by itself, and it is not emailed anywhere yet.