A favorite of track day gurus, intermediate viscosity for consistent LSD operation. New product designed as an intermediate viscosity providing additional film strength over a 75W90, yet less drag than a 75W140 Developed with support from Red Line-sponsored racing team and project cars, provides improved limited slip operation under extreme loads and differential temperature Offers gear noise reduction over 75W90, avoiding a significant jump in viscosity to 75W140 when troubleshooting noisy gear sets Popular in many sports car applications as well as light trucks (Chevy 1500 Silverado, Tahoe, etc.) Contains additional friction modifiers for suitability with clutch-type limited-slip differentials - for most LSDs, no additional friction modifiers are required This product is not designed for use in most manual transmissions or transaxles, since the extreme slipperiness may cause synchronizer mesh issues that lead to shifting problems
These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers (except NS) for proper limited-slip operation
| API Service Class | GL-5+ |
| SAE Viscosity Grade (Gear Oil) | 75W110 |
| Vis @ 100°C, CSt | 21 |
| Vis @ 40°C, CSt | 131 |
| Viscosity Index | 184 |
| Pour Point, °C | -42 |
| Pour Point, °F | -44 |
| Brookfield Viscosity @ -40°C, Poise | 830 @-40°C |