






⚙️ Shift to the future with Red Line’s race-grade gear oil — because your differential deserves the best.
Red Line 50104 is a 75W85 full synthetic gear oil engineered with polyol ester base stocks and friction modifiers for superior protection and efficiency in hypoid limited slip differentials. It offers exceptional thermal stability, shear resistance, and oxidation control, meeting API GL-5 and GL-6 standards. Trusted by performance enthusiasts and OEMs alike, it’s ideal for late-model vehicles and racing transaxles, delivering longer drain intervals and optimized LSD clutch operation without compromising shifting.






| Manufacturer | Red Line |
| Brand | Red Line |
| Model | 50104 |
| Product Dimensions | 10.16 x 10.16 x 10.16 cm; 650 g |
| Item model number | RED50104 |
| Manufacturer Part Number | 50104 |
| OEM Part Number | 50104 |
| Item Weight | 650 g |
| Viscosity | Lightweight |
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