Description
Our MOBIL RARUS 424 compressor oil equivalent is a 5 gallon Semi Synthetic 32 compressor lubricant. This 424 semi synthetic hydrocarbon-based compressor lubricant offers extended operating life and is ideal for partial duty rotary screw compressors which do not require a full 8,000-hour service life lubricant.
For demanding applications that experience contaminated air quality, more frequent fluid changes can provide additional protection to the compressor, eliminating high particulate levels from the system.
Our aftermarket MOBIL RARUS 424 lubricant is proudly Made in the USA.
Typical Compressor Applications:
• Rotary Screw Compressors – ISO 32
Made in the USA
View the SDS for our MOBIL RARUS 424 Compressor Oil.
Mobil RARUS 424 Replacement
FES Semi Synthetic 32 Technical Data Sheet
FES Semi Synthetic 32 is our aftermarket equivalent for Mobil RARUS 424. View the properties and available sizes on the data sheet.
FES Semi Synthetic 32 typical properties
| Typical property | Test method | Typical value |
|---|---|---|
| Color | Visual | Colorless |
| Clarity | Visual | Clear |
| ISO Viscosity Grade | ISO 3448 | 32 |
| Viscosity @ 40°C (cSt) | ASTM D445 | 31.4 |
| Viscosity @ 100°C (cSt) | ASTM D445 | 5.4 |
| Viscosity Index | ASTM D2270 | 104 |
| Pour Point °C (°F) | ASTM D5950 | -17 (1.4) |
| Density @ 15°C (g/cm³) | ASTM D4052 | 0.836 |
| Flash Point °C (°F) | ASTM D92 | 220 (428) |
| Fire Point °C (°F) | ASTM D92 | 239 (462) |
| Neutralization Number (mg KOH/g) | ASTM D974 | 0.3 |
| Rust Prevention (24 h) | ASTM D665B | Pass |
| Copper Strip Corrosion | ASTM D130 | 1b |
| Foam Tendency / Stability | ASTM D892 | 0/0, 0/0, 0/0 |
| Water Separation @ 54°C | ASTM D1401 | 40/40/0 |
| Water Separation @ 82°C | ASTM D1401 | - |
Typical values, not a specification. Confirm suitability for your application.
Extra Information
Warranty Information
We guarantee our RARUS 424 compressor oil replacement will meet or exceed the specifications, performance, and warranty of the OEM compressor oil.
The above specifications are typical of current production. While future production will conform to manufacturer specification, variations in these characteristics may occur. It is always advised to evaluate any recommendations and/or specifications with application specialists, and the history of your compressor fluid usage, to confirm suitability.
Filter Element Store operates independently as a provider of aftermarket replacement parts and is not associated with the manufacturers referenced in this listing. Any mention of original equipment manufacturer (OEM) names within this context acknowledges them as the trademarks of their respective manufacturers. For products labeled as "equivalent," "replacement," "replaces," "cross," or "aftermarket," any reference to OEM names and part numbers is solely for informational purposes.