Mobil PM Ashless 320
ISO VG 320 anti-wear, r&o paper machine oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 320 cSt | ASTM D445 |
| KV100 | 24 cSt | ASTM D445 |
| Viscosity index | 97 | ASTM D2270 |
| Pour point | — | ASTM D97 |
| Flash point | — | ASTM D92 |
| Density at 15 °C | — | typical |
Grade checks
- KV40 is inside ISO VG 320 (288–352 cSt).
- Computed viscosity index is 95, within 2 points of the listed 97.
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: Paper Machine
- Attribute: Anti-Wear, R&O
- Synthetic: Conventional
- Copper: Unlisted
- Note: Paper Machine (free of metallic additives)
Equivalents
| Oil | Score | Why |
|---|---|---|
| Shell Paper Machine S2 M 320 | 68 | same ISO 320, VI 95 vs 97, additive aw/ro, conventional |
| Shell Paper Machine S3 M 320 | 68 | same ISO 320, VI 95 vs 97, additive aw/ro, conventional |
| Chevron Paper Machine Oil Premium 320 | 65 | same ISO 320, VI 92 vs 97, additive aw/ro, conventional |
| Chevron Clarity Synthetic Machine Oil 320 | 13 | same ISO 320, VI 162 vs 97, additive ro |
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: Mobil, DTE PM Ashless, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Mobil PM Ashless 320 an ISO VG 320 oil?
Yes. The catalogue lists it as ISO VG 320, which is a kinematic viscosity of 320 cSt at 40 °C, plus or minus 10 percent (288 to 352 cSt). Confirm the current data sheet before you fill a machine.
What is a Mobil PM Ashless 320 equivalent?
Published oils in the same application and grade include Shell Paper Machine S2 M 320, Shell Paper Machine S3 M 320, Chevron Paper Machine Oil Premium 320. 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 PM Ashless 320 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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