PennGrade 1 FS Hypoid Gear and Blower Racing Lube SAE 75W-90 is a full synthetic gear lubricant for hypoid differentials, manual transmissions, and self-contained supercharger systems, including Roots and Lysholm screw blowers. PennGrade lists it for street performance builds and dedicated race applications, citing lower operating temperatures than conventional gear lubes. This listing is for a case of twelve 1 quart bottles.
Specifications:
- Product: PennGrade 1 FS Hypoid Gear/Blower Racing Lube SAE 75W-90
- Viscosity grade: SAE 75W-90
- Oil type: Full synthetic
- Viscosity index: 140
- Flash point: 410 F (210 C)
- Pour point: -50 F (-46 C)
- Industry/API spec: Meets or exceeds MIL-PRF-2105E, SAE J2360, API MT-1, API GL-5, Mack GO-J (PDS)
- Typical use: Hypoid differentials, manual transmissions, and self-contained supercharger (Roots, screw) systems
- Package: Case of 12 Quarts
- Part number: 77666
FAQ
What is PennGrade 1 FS Hypoid 75W-90 for?
PennGrade lists it for hypoid differentials, manual transmissions, and self-contained supercharger systems (Roots and Lysholm screw) in street performance and race applications.
Is it a full synthetic?
Yes. It is a 100% synthetic gear and blower racing lubricant.
What industry specs does it meet?
PennGrade states it meets or exceeds MIL-PRF-2105E, SAE J2360, API MT-1, API GL-5, and Mack GO-J.
How is this listing packaged?
This listing is a case of twelve 1 quart bottles. It is also stocked in other package sizes (1 Quart).

