Chevron Meropa Synthetic EP 460
ISO VG 460 anti-wear, r&o, extreme pressure gear oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 437 cSt | ASTM D445 |
| KV100 | 47 cSt | ASTM D445 |
| Viscosity index | 166 | ASTM D2270 |
| Pour point | -36 °C | ASTM D97 |
| Flash point | 240 °C | ASTM D92 |
| Density at 15 °C | 0.862 g/cm³ | typical |
Grade checks
- KV40 is inside ISO VG 460 (414–506 cSt).
- Computed viscosity index is 166, within 2 points of the listed 166.
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, Extreme Pressure
- Synthetic: Synthetic
- Base oil: PAO
- Copper: Unlisted
- Note: Synthetic, extreme pressure
Sulfur, EP additives and yellow metal
Extreme-pressure gear oils use sulfur compounds so steel teeth do not weld under shock. That same sulfur can tarnish or pit copper, brass and bronze: a bronze worm wheel, a brass cage, a cooler tube. ASTM D130 sits a polished copper strip in the oil and scores the colour. 1A and 1B are the ratings to keep when yellow metal shares the oil. The strip below is that test at room temperature.
How lubricant-induced copper corrosion works
Equivalents
| Oil | Score | Why |
|---|---|---|
| Shell Omala S4 GXV 460 | 77 | same ISO 460, VI 179 vs 166, additive aw/ep/ro, synthetic, pour -42 vs -36, flash within 15 °C, buyable now |
| Mobil Mobilgear SHC XMP 460 | 68 | same ISO 460, VI 166 vs 166, additive ep, synthetic, pour -36 vs -36, flash within 15 °C |
| Shell Omala S4 GX 460 | 68 | same ISO 460, VI 170 vs 166, additive aw/ro, synthetic, pour -36 vs -36 |
| Mobil Mobil SHC 634 | 55 | same ISO 460, VI 174 vs 166, additive ep, synthetic, flash within 15 °C, buyable now |
| Castrol Optigear Synthetic PD 460 ES | 54 | same ISO 460, VI 172 vs 166, synthetic, pour -42 vs -36, 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
- No product data sheet link.
- Safety data sheet
Related: Chevron, Meropa Synthetic EP, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Chevron Meropa Synthetic 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 Chevron Meropa Synthetic EP 460 equivalent?
Published oils in the same application and grade include Shell Omala S4 GXV 460, Mobil Mobilgear SHC XMP 460, Shell Omala S4 GX 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 Chevron Meropa Synthetic 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.
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