Red Line 75W90NS Gear Oil - Quart

Fully-synthetic, ester-based gear oil formulated for manual transmissions and transaxles requiring GL-5 lubricants. Features a non-slip formula for shear stability, reduced gear noise, and consistent viscosity. Contains extreme pressure (EP) additives for hypoid gears but lacks friction modifiers for optimal synchronizer operation (can be added separately). Improves copper corrosion protection for extended synchro life. Helps with lock-up in weak limited-slip differentials and is compatible with Red Line Limited Slip Friction Modifier for tuning. Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360 standards. Non-corrosive and safe for all synchro materials.