Mobil Mobiltac 375 NC
Anti-wear, extreme pressure gear oil
This page is not indexed. It is missing a real data-sheet link, a grade, or three of viscosity index, pour point, flash point and density.
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 | 5000 cSt | ASTM D445 |
| KV100 | 1260 cSt | ASTM D445 |
| Viscosity index | — | ASTM D2270 |
| Pour point | — | ASTM D97 |
| Flash point | 135 °C | ASTM D92 |
| Density at 15 °C | 0.96 g/cm³ | typical |
Grade checks
- No ISO grade is stored.
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, Extreme Pressure
- Synthetic: Conventional
- Copper: Unlisted
- Note: Open gear and mining
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
No other brand in this catalogue passes the equivalents filters for this oil.
Documents
Related: Mobil, Mobiltac, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
What is a Mobil Mobiltac 375 NC 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 Mobil Mobiltac 375 NC 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.